Vulnerability-Lookup

ubuntu-cve-2026-27447

Vulnerability from osv_ubuntu

Published

2026-04-03 22:16

Modified

2026-07-21 15:40

Summary

Details

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, CUPS daemon (cupsd) contains an authorization bypass vulnerability due to case-insensitive username comparison during authorization checks. The vulnerability allows an unprivileged user to gain unauthorized access to restricted operations by using a user with a username that differs only in case from an authorized user. At time of publication, there are no publicly available patches.

Severity

4.8 (Medium)


                    
                      CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N

6.3 (Medium)


                    
                      CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-27447	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-27447	REPORT
	https://github.com/OpenPrinting/cups/security/adv…	REPORT
	https://ubuntu.com/security/notices/USN-8405-1	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "cups",
            "binary_version": "2.1.3-4ubuntu0.11+esm13"
          },
          {
            "binary_name": "cups-bsd",
            "binary_version": "2.1.3-4ubuntu0.11+esm13"
          },
          {
            "binary_name": "cups-client",
            "binary_version": "2.1.3-4ubuntu0.11+esm13"
          },
          {
            "binary_name": "cups-common",
            "binary_version": "2.1.3-4ubuntu0.11+esm13"
          },
          {
            "binary_name": "cups-core-drivers",
            "binary_version": "2.1.3-4ubuntu0.11+esm13"
          },
          {
            "binary_name": "cups-daemon",
            "binary_version": "2.1.3-4ubuntu0.11+esm13"
          },
          {
            "binary_name": "cups-ipp-utils",
            "binary_version": "2.1.3-4ubuntu0.11+esm13"
          },
          {
            "binary_name": "cups-ppdc",
            "binary_version": "2.1.3-4ubuntu0.11+esm13"
          },
          {
            "binary_name": "cups-server-common",
            "binary_version": "2.1.3-4ubuntu0.11+esm13"
          },
          {
            "binary_name": "libcups2",
            "binary_version": "2.1.3-4ubuntu0.11+esm13"
          },
          {
            "binary_name": "libcupscgi1",
            "binary_version": "2.1.3-4ubuntu0.11+esm13"
          },
          {
            "binary_name": "libcupsimage2",
            "binary_version": "2.1.3-4ubuntu0.11+esm13"
          },
          {
            "binary_name": "libcupsmime1",
            "binary_version": "2.1.3-4ubuntu0.11+esm13"
          },
          {
            "binary_name": "libcupsppdc1",
            "binary_version": "2.1.3-4ubuntu0.11+esm13"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "cups",
        "purl": "pkg:deb/ubuntu/cups@2.1.3-4ubuntu0.11+esm13?arch=source\u0026distro=esm-infra-legacy/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.1.0-4ubuntu3",
        "2.1.0-5",
        "2.1.0-6",
        "2.1.0-6ubuntu1",
        "2.1.0-7",
        "2.1.2-1",
        "2.1.2-2",
        "2.1.3-1",
        "2.1.3-1build1",
        "2.1.3-3",
        "2.1.3-4",
        "2.1.3-4ubuntu0.2",
        "2.1.3-4ubuntu0.3",
        "2.1.3-4ubuntu0.4",
        "2.1.3-4ubuntu0.5",
        "2.1.3-4ubuntu0.6",
        "2.1.3-4ubuntu0.7",
        "2.1.3-4ubuntu0.8",
        "2.1.3-4ubuntu0.9",
        "2.1.3-4ubuntu0.10",
        "2.1.3-4ubuntu0.11",
        "2.1.3-4ubuntu0.11+esm1",
        "2.1.3-4ubuntu0.11+esm2",
        "2.1.3-4ubuntu0.11+esm3",
        "2.1.3-4ubuntu0.11+esm4",
        "2.1.3-4ubuntu0.11+esm5",
        "2.1.3-4ubuntu0.11+esm6",
        "2.1.3-4ubuntu0.11+esm7",
        "2.1.3-4ubuntu0.11+esm8",
        "2.1.3-4ubuntu0.11+esm9",
        "2.1.3-4ubuntu0.11+esm11",
        "2.1.3-4ubuntu0.11+esm12",
        "2.1.3-4ubuntu0.11+esm13"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "cups",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
          },
          {
            "binary_name": "cups-bsd",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
          },
          {
            "binary_name": "cups-client",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
          },
          {
            "binary_name": "cups-common",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
          },
          {
            "binary_name": "cups-core-drivers",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
          },
          {
            "binary_name": "cups-daemon",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
          },
          {
            "binary_name": "cups-ipp-utils",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
          },
          {
            "binary_name": "cups-ppdc",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
          },
          {
            "binary_name": "cups-server-common",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
          },
          {
            "binary_name": "libcups2",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
          },
          {
            "binary_name": "libcupscgi1",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
          },
          {
            "binary_name": "libcupsimage2",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
          },
          {
            "binary_name": "libcupsmime1",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
          },
          {
            "binary_name": "libcupsppdc1",
            "binary_version": "2.2.7-1ubuntu2.10+esm10"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "cups",
        "purl": "pkg:deb/ubuntu/cups@2.2.7-1ubuntu2.10+esm10?arch=source\u0026distro=esm-infra/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.4-7ubuntu2",
        "2.2.5-2",
        "2.2.6-2",
        "2.2.6-3",
        "2.2.6-4",
        "2.2.6-5",
        "2.2.7-1ubuntu1",
        "2.2.7-1ubuntu2",
        "2.2.7-1ubuntu2.1",
        "2.2.7-1ubuntu2.2",
        "2.2.7-1ubuntu2.3",
        "2.2.7-1ubuntu2.4",
        "2.2.7-1ubuntu2.5",
        "2.2.7-1ubuntu2.6",
        "2.2.7-1ubuntu2.7",
        "2.2.7-1ubuntu2.8",
        "2.2.7-1ubuntu2.9",
        "2.2.7-1ubuntu2.10",
        "2.2.7-1ubuntu2.10+esm1",
        "2.2.7-1ubuntu2.10+esm2",
        "2.2.7-1ubuntu2.10+esm3",
        "2.2.7-1ubuntu2.10+esm4",
        "2.2.7-1ubuntu2.10+esm5",
        "2.2.7-1ubuntu2.10+esm6",
        "2.2.7-1ubuntu2.10+esm7",
        "2.2.7-1ubuntu2.10+esm9",
        "2.2.7-1ubuntu2.10+esm10"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "cups",
            "binary_version": "2.3.1-9ubuntu1.9+esm4"
          },
          {
            "binary_name": "cups-bsd",
            "binary_version": "2.3.1-9ubuntu1.9+esm4"
          },
          {
            "binary_name": "cups-client",
            "binary_version": "2.3.1-9ubuntu1.9+esm4"
          },
          {
            "binary_name": "cups-common",
            "binary_version": "2.3.1-9ubuntu1.9+esm4"
          },
          {
            "binary_name": "cups-core-drivers",
            "binary_version": "2.3.1-9ubuntu1.9+esm4"
          },
          {
            "binary_name": "cups-daemon",
            "binary_version": "2.3.1-9ubuntu1.9+esm4"
          },
          {
            "binary_name": "cups-ipp-utils",
            "binary_version": "2.3.1-9ubuntu1.9+esm4"
          },
          {
            "binary_name": "cups-ppdc",
            "binary_version": "2.3.1-9ubuntu1.9+esm4"
          },
          {
            "binary_name": "cups-server-common",
            "binary_version": "2.3.1-9ubuntu1.9+esm4"
          },
          {
            "binary_name": "libcups2",
            "binary_version": "2.3.1-9ubuntu1.9+esm4"
          },
          {
            "binary_name": "libcupsimage2",
            "binary_version": "2.3.1-9ubuntu1.9+esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "cups",
        "purl": "pkg:deb/ubuntu/cups@2.3.1-9ubuntu1.9+esm4?arch=source\u0026distro=esm-infra/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.12-2ubuntu1",
        "2.3.0-6",
        "2.3.0-7",
        "2.3.0-7ubuntu1",
        "2.3.1-1ubuntu1",
        "2.3.1-2",
        "2.3.1-4",
        "2.3.1-7",
        "2.3.1-9ubuntu1",
        "2.3.1-9ubuntu1.1",
        "2.3.1-9ubuntu1.2",
        "2.3.1-9ubuntu1.3",
        "2.3.1-9ubuntu1.4",
        "2.3.1-9ubuntu1.5",
        "2.3.1-9ubuntu1.6",
        "2.3.1-9ubuntu1.7",
        "2.3.1-9ubuntu1.8",
        "2.3.1-9ubuntu1.9",
        "2.3.1-9ubuntu1.9+esm1",
        "2.3.1-9ubuntu1.9+esm3",
        "2.3.1-9ubuntu1.9+esm4"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "cups",
            "binary_version": "2.4.1op1-1ubuntu4.20"
          },
          {
            "binary_name": "cups-bsd",
            "binary_version": "2.4.1op1-1ubuntu4.20"
          },
          {
            "binary_name": "cups-client",
            "binary_version": "2.4.1op1-1ubuntu4.20"
          },
          {
            "binary_name": "cups-common",
            "binary_version": "2.4.1op1-1ubuntu4.20"
          },
          {
            "binary_name": "cups-core-drivers",
            "binary_version": "2.4.1op1-1ubuntu4.20"
          },
          {
            "binary_name": "cups-daemon",
            "binary_version": "2.4.1op1-1ubuntu4.20"
          },
          {
            "binary_name": "cups-ipp-utils",
            "binary_version": "2.4.1op1-1ubuntu4.20"
          },
          {
            "binary_name": "cups-ppdc",
            "binary_version": "2.4.1op1-1ubuntu4.20"
          },
          {
            "binary_name": "cups-server-common",
            "binary_version": "2.4.1op1-1ubuntu4.20"
          },
          {
            "binary_name": "libcups2",
            "binary_version": "2.4.1op1-1ubuntu4.20"
          },
          {
            "binary_name": "libcupsimage2",
            "binary_version": "2.4.1op1-1ubuntu4.20"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "cups",
        "purl": "pkg:deb/ubuntu/cups@2.4.1op1-1ubuntu4.20?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.1op1-1ubuntu4.20"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.3.3op2-7ubuntu2",
        "2.4.1op1-1ubuntu1",
        "2.4.1op1-1ubuntu2",
        "2.4.1op1-1ubuntu3",
        "2.4.1op1-1ubuntu4",
        "2.4.1op1-1ubuntu4.1",
        "2.4.1op1-1ubuntu4.2",
        "2.4.1op1-1ubuntu4.4",
        "2.4.1op1-1ubuntu4.6",
        "2.4.1op1-1ubuntu4.7",
        "2.4.1op1-1ubuntu4.8",
        "2.4.1op1-1ubuntu4.9",
        "2.4.1op1-1ubuntu4.10",
        "2.4.1op1-1ubuntu4.11",
        "2.4.1op1-1ubuntu4.12",
        "2.4.1op1-1ubuntu4.15",
        "2.4.1op1-1ubuntu4.16"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "cups",
            "binary_version": "2.4.7-1.2ubuntu7.13"
          },
          {
            "binary_name": "cups-bsd",
            "binary_version": "2.4.7-1.2ubuntu7.13"
          },
          {
            "binary_name": "cups-client",
            "binary_version": "2.4.7-1.2ubuntu7.13"
          },
          {
            "binary_name": "cups-common",
            "binary_version": "2.4.7-1.2ubuntu7.13"
          },
          {
            "binary_name": "cups-core-drivers",
            "binary_version": "2.4.7-1.2ubuntu7.13"
          },
          {
            "binary_name": "cups-daemon",
            "binary_version": "2.4.7-1.2ubuntu7.13"
          },
          {
            "binary_name": "cups-ipp-utils",
            "binary_version": "2.4.7-1.2ubuntu7.13"
          },
          {
            "binary_name": "cups-ppdc",
            "binary_version": "2.4.7-1.2ubuntu7.13"
          },
          {
            "binary_name": "cups-server-common",
            "binary_version": "2.4.7-1.2ubuntu7.13"
          },
          {
            "binary_name": "libcups2t64",
            "binary_version": "2.4.7-1.2ubuntu7.13"
          },
          {
            "binary_name": "libcupsimage2t64",
            "binary_version": "2.4.7-1.2ubuntu7.13"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "cups",
        "purl": "pkg:deb/ubuntu/cups@2.4.7-1.2ubuntu7.13?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.7-1.2ubuntu7.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.4.6-0ubuntu3",
        "2.4.7-1.2ubuntu2",
        "2.4.7-1.2ubuntu3",
        "2.4.7-1.2ubuntu7",
        "2.4.7-1.2ubuntu7.1",
        "2.4.7-1.2ubuntu7.2",
        "2.4.7-1.2ubuntu7.3",
        "2.4.7-1.2ubuntu7.4",
        "2.4.7-1.2ubuntu7.7",
        "2.4.7-1.2ubuntu7.9"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "cups",
            "binary_version": "2.4.12-0ubuntu3.9"
          },
          {
            "binary_name": "cups-bsd",
            "binary_version": "2.4.12-0ubuntu3.9"
          },
          {
            "binary_name": "cups-client",
            "binary_version": "2.4.12-0ubuntu3.9"
          },
          {
            "binary_name": "cups-common",
            "binary_version": "2.4.12-0ubuntu3.9"
          },
          {
            "binary_name": "cups-core-drivers",
            "binary_version": "2.4.12-0ubuntu3.9"
          },
          {
            "binary_name": "cups-daemon",
            "binary_version": "2.4.12-0ubuntu3.9"
          },
          {
            "binary_name": "cups-ipp-utils",
            "binary_version": "2.4.12-0ubuntu3.9"
          },
          {
            "binary_name": "cups-ppdc",
            "binary_version": "2.4.12-0ubuntu3.9"
          },
          {
            "binary_name": "cups-server-common",
            "binary_version": "2.4.12-0ubuntu3.9"
          },
          {
            "binary_name": "libcups2t64",
            "binary_version": "2.4.12-0ubuntu3.9"
          },
          {
            "binary_name": "libcupsimage2t64",
            "binary_version": "2.4.12-0ubuntu3.9"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "cups",
        "purl": "pkg:deb/ubuntu/cups@2.4.12-0ubuntu3.9?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.12-0ubuntu3.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.4.12-0ubuntu1",
        "2.4.12-0ubuntu2",
        "2.4.12-0ubuntu3",
        "2.4.12-0ubuntu3.3",
        "2.4.12-0ubuntu3.5"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "cups",
            "binary_version": "2.4.16-1ubuntu1.2"
          },
          {
            "binary_name": "cups-bsd",
            "binary_version": "2.4.16-1ubuntu1.2"
          },
          {
            "binary_name": "cups-client",
            "binary_version": "2.4.16-1ubuntu1.2"
          },
          {
            "binary_name": "cups-common",
            "binary_version": "2.4.16-1ubuntu1.2"
          },
          {
            "binary_name": "cups-core-drivers",
            "binary_version": "2.4.16-1ubuntu1.2"
          },
          {
            "binary_name": "cups-daemon",
            "binary_version": "2.4.16-1ubuntu1.2"
          },
          {
            "binary_name": "cups-ipp-utils",
            "binary_version": "2.4.16-1ubuntu1.2"
          },
          {
            "binary_name": "cups-ppdc",
            "binary_version": "2.4.16-1ubuntu1.2"
          },
          {
            "binary_name": "cups-server-common",
            "binary_version": "2.4.16-1ubuntu1.2"
          },
          {
            "binary_name": "libcups2t64",
            "binary_version": "2.4.16-1ubuntu1.2"
          },
          {
            "binary_name": "libcupsimage2t64",
            "binary_version": "2.4.16-1ubuntu1.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "cups",
        "purl": "pkg:deb/ubuntu/cups@2.4.16-1ubuntu1.2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.16-1ubuntu1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.4.12-0ubuntu3",
        "2.4.12-0ubuntu5",
        "2.4.16-1ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, CUPS daemon (cupsd) contains an authorization bypass vulnerability due to case-insensitive username comparison during authorization checks. The vulnerability allows an unprivileged user to gain unauthorized access to restricted operations by using a user with a username that differs only in case from an authorized user. At time of publication, there are no publicly available patches.",
  "id": "UBUNTU-CVE-2026-27447",
  "modified": "2026-07-21T15:40:17Z",
  "published": "2026-04-03T22:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-27447"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-27447"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/OpenPrinting/cups/security/advisories/GHSA-v987-m8hp-phj9"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8405-1"
    }
  ],
  "related": [
    "USN-8405-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-27447"
  ]
}

CVE-2026-27447 (GCVE-0-2026-27447)

Vulnerability from cvelistv5 – Published: 2026-04-03 21:11 – Updated: 2026-04-06 18:50

Title

OpenPrinting CUPS: Authorization bypass via case-insensitive group-member lookup

Summary

Severity

4.8 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-06 18:49 UTC

CWE

CWE-863 - Incorrect Authorization

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/OpenPrinting/cups/security/adv…	x_refsource_CONFIRM
https://github.com/OpenPrinting/cups/commit/88516…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
OpenPrinting	cups	Affected: <= 2.4.16

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-27447",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-06T18:49:46.413933Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-06T18:50:21.909Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "cups",
          "vendor": "OpenPrinting",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 2.4.16"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, CUPS daemon (cupsd) contains an authorization bypass vulnerability due to case-insensitive username comparison during authorization checks. The vulnerability allows an unprivileged user to gain unauthorized access to restricted operations by using a user with a username that differs only in case from an authorized user. At time of publication, there are no publicly available patches."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-863",
              "description": "CWE-863: Incorrect Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-03T21:11:59.734Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/OpenPrinting/cups/security/advisories/GHSA-v987-m8hp-phj9",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/OpenPrinting/cups/security/advisories/GHSA-v987-m8hp-phj9"
        },
        {
          "name": "https://github.com/OpenPrinting/cups/commit/88516bf6d9e34cef7a64a704b856b837f70cd220",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/OpenPrinting/cups/commit/88516bf6d9e34cef7a64a704b856b837f70cd220"
        }
      ],
      "source": {
        "advisory": "GHSA-v987-m8hp-phj9",
        "discovery": "UNKNOWN"
      },
      "title": "OpenPrinting CUPS: Authorization bypass via case-insensitive group-member lookup"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-27447",
    "datePublished": "2026-04-03T21:11:59.734Z",
    "dateReserved": "2026-02-19T17:25:31.100Z",
    "dateUpdated": "2026-04-06T18:50:21.909Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

usn-8405-1

Vulnerability from osv_ubuntu

Published

2026-06-08 15:51

Modified

2026-06-08 15:51

Summary

cups vulnerabilities

Details

Ariel Silver discovered that CUPS incorrectly handled username comparisons during authorization checks. A local attacker could possibly use this issue to gain unauthorized access to restricted operations. (CVE-2026-27447)

Asim Viladi Oglu Manizada discovered that CUPS incorrectly handled notify-recipient-uri values in the RSS notifier. A remote attacker could possibly use this issue to overwrite lp-writable files and cause a denial of service. (CVE-2026-34978)

Jacob Newman discovered that CUPS incorrectly handled filter option strings when processing job attributes. An attacker could use this issue to cause CUPS to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2026-34979)

Asim Viladi Oglu Manizada discovered that CUPS incorrectly handled page-border values in shared PostScript queues. A remote attacker could possibly use this issue to execute arbitrary code. (CVE-2026-34980)

Asim Viladi Oglu Manizada discovered that CUPS incorrectly handled localhost authentication to attacker-controlled IPP services. A local attacker could possibly use this issue to overwrite arbitrary files and execute arbitrary code. (CVE-2026-34990)

Tomer Fichman discovered that CUPS incorrectly handled negative job-password-supported values. A local attacker could possibly use this issue to cause CUPS to crash, resulting in a denial of service. (CVE-2026-39314)

Tomer Fichman discovered that CUPS incorrectly handled temporary printer deletion. An attacker could possibly use this issue to cause CUPS to crash, resulting in a denial of service, or to execute arbitrary code. (CVE-2026-39316)

Tomer Fichman discovered that CUPS incorrectly handled certain malformed SNMP responses. An attacker could possibly use this issue to obtain sensitive information. (CVE-2026-41079)

References

URL

Type

	https://ubuntu.com/security/notices/USN-8405-1	ADVISORY
	https://ubuntu.com/security/CVE-2026-27447	REPORT
	https://ubuntu.com/security/CVE-2026-34978	REPORT
	https://ubuntu.com/security/CVE-2026-34979	REPORT
	https://ubuntu.com/security/CVE-2026-34980	REPORT
	https://ubuntu.com/security/CVE-2026-34990	REPORT
	https://ubuntu.com/security/CVE-2026-39314	REPORT
	https://ubuntu.com/security/CVE-2026-39316	REPORT
	https://ubuntu.com/security/CVE-2026-41079	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-27447",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-34978",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-34979",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-34980",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-34990",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:L",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-39314",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-39316",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-41079",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "cups",
            "binary_version": "2.4.1op1-1ubuntu4.20"
          },
          {
            "binary_name": "cups-bsd",
            "binary_version": "2.4.1op1-1ubuntu4.20"
          },
          {
            "binary_name": "cups-client",
            "binary_version": "2.4.1op1-1ubuntu4.20"
          },
          {
            "binary_name": "cups-common",
            "binary_version": "2.4.1op1-1ubuntu4.20"
          },
          {
            "binary_name": "cups-core-drivers",
            "binary_version": "2.4.1op1-1ubuntu4.20"
          },
          {
            "binary_name": "cups-daemon",
            "binary_version": "2.4.1op1-1ubuntu4.20"
          },
          {
            "binary_name": "cups-ipp-utils",
            "binary_version": "2.4.1op1-1ubuntu4.20"
          },
          {
            "binary_name": "cups-ppdc",
            "binary_version": "2.4.1op1-1ubuntu4.20"
          },
          {
            "binary_name": "cups-server-common",
            "binary_version": "2.4.1op1-1ubuntu4.20"
          },
          {
            "binary_name": "libcups2",
            "binary_version": "2.4.1op1-1ubuntu4.20"
          },
          {
            "binary_name": "libcupsimage2",
            "binary_version": "2.4.1op1-1ubuntu4.20"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "cups",
        "purl": "pkg:deb/ubuntu/cups@2.4.1op1-1ubuntu4.20?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.1op1-1ubuntu4.20"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.3.3op2-7ubuntu2",
        "2.4.1op1-1ubuntu1",
        "2.4.1op1-1ubuntu2",
        "2.4.1op1-1ubuntu3",
        "2.4.1op1-1ubuntu4",
        "2.4.1op1-1ubuntu4.1",
        "2.4.1op1-1ubuntu4.2",
        "2.4.1op1-1ubuntu4.4",
        "2.4.1op1-1ubuntu4.6",
        "2.4.1op1-1ubuntu4.7",
        "2.4.1op1-1ubuntu4.8",
        "2.4.1op1-1ubuntu4.9",
        "2.4.1op1-1ubuntu4.10",
        "2.4.1op1-1ubuntu4.11",
        "2.4.1op1-1ubuntu4.12",
        "2.4.1op1-1ubuntu4.15",
        "2.4.1op1-1ubuntu4.16"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-27447",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-34978",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-34979",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-34980",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-34990",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:L",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-39314",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-39316",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-41079",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "cups",
            "binary_version": "2.4.7-1.2ubuntu7.13"
          },
          {
            "binary_name": "cups-bsd",
            "binary_version": "2.4.7-1.2ubuntu7.13"
          },
          {
            "binary_name": "cups-client",
            "binary_version": "2.4.7-1.2ubuntu7.13"
          },
          {
            "binary_name": "cups-common",
            "binary_version": "2.4.7-1.2ubuntu7.13"
          },
          {
            "binary_name": "cups-core-drivers",
            "binary_version": "2.4.7-1.2ubuntu7.13"
          },
          {
            "binary_name": "cups-daemon",
            "binary_version": "2.4.7-1.2ubuntu7.13"
          },
          {
            "binary_name": "cups-ipp-utils",
            "binary_version": "2.4.7-1.2ubuntu7.13"
          },
          {
            "binary_name": "cups-ppdc",
            "binary_version": "2.4.7-1.2ubuntu7.13"
          },
          {
            "binary_name": "cups-server-common",
            "binary_version": "2.4.7-1.2ubuntu7.13"
          },
          {
            "binary_name": "libcups2t64",
            "binary_version": "2.4.7-1.2ubuntu7.13"
          },
          {
            "binary_name": "libcupsimage2t64",
            "binary_version": "2.4.7-1.2ubuntu7.13"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "cups",
        "purl": "pkg:deb/ubuntu/cups@2.4.7-1.2ubuntu7.13?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.7-1.2ubuntu7.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.4.6-0ubuntu3",
        "2.4.7-1.2ubuntu2",
        "2.4.7-1.2ubuntu3",
        "2.4.7-1.2ubuntu7",
        "2.4.7-1.2ubuntu7.1",
        "2.4.7-1.2ubuntu7.2",
        "2.4.7-1.2ubuntu7.3",
        "2.4.7-1.2ubuntu7.4",
        "2.4.7-1.2ubuntu7.7",
        "2.4.7-1.2ubuntu7.9"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-27447",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-34978",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-34979",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-34980",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-34990",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:L",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-39314",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-39316",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-41079",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:25.10"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "cups",
            "binary_version": "2.4.12-0ubuntu3.9"
          },
          {
            "binary_name": "cups-bsd",
            "binary_version": "2.4.12-0ubuntu3.9"
          },
          {
            "binary_name": "cups-client",
            "binary_version": "2.4.12-0ubuntu3.9"
          },
          {
            "binary_name": "cups-common",
            "binary_version": "2.4.12-0ubuntu3.9"
          },
          {
            "binary_name": "cups-core-drivers",
            "binary_version": "2.4.12-0ubuntu3.9"
          },
          {
            "binary_name": "cups-daemon",
            "binary_version": "2.4.12-0ubuntu3.9"
          },
          {
            "binary_name": "cups-ipp-utils",
            "binary_version": "2.4.12-0ubuntu3.9"
          },
          {
            "binary_name": "cups-ppdc",
            "binary_version": "2.4.12-0ubuntu3.9"
          },
          {
            "binary_name": "cups-server-common",
            "binary_version": "2.4.12-0ubuntu3.9"
          },
          {
            "binary_name": "libcups2t64",
            "binary_version": "2.4.12-0ubuntu3.9"
          },
          {
            "binary_name": "libcupsimage2t64",
            "binary_version": "2.4.12-0ubuntu3.9"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "cups",
        "purl": "pkg:deb/ubuntu/cups@2.4.12-0ubuntu3.9?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.12-0ubuntu3.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.4.12-0ubuntu1",
        "2.4.12-0ubuntu2",
        "2.4.12-0ubuntu3",
        "2.4.12-0ubuntu3.3",
        "2.4.12-0ubuntu3.5"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-27447",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-34978",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-34979",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-34980",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-34990",
              "severity": [
                {
                  "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:L",
                  "type": "CVSS_V4"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-39314",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-39316",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-41079",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:26.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "cups",
            "binary_version": "2.4.16-1ubuntu1.2"
          },
          {
            "binary_name": "cups-bsd",
            "binary_version": "2.4.16-1ubuntu1.2"
          },
          {
            "binary_name": "cups-client",
            "binary_version": "2.4.16-1ubuntu1.2"
          },
          {
            "binary_name": "cups-common",
            "binary_version": "2.4.16-1ubuntu1.2"
          },
          {
            "binary_name": "cups-core-drivers",
            "binary_version": "2.4.16-1ubuntu1.2"
          },
          {
            "binary_name": "cups-daemon",
            "binary_version": "2.4.16-1ubuntu1.2"
          },
          {
            "binary_name": "cups-ipp-utils",
            "binary_version": "2.4.16-1ubuntu1.2"
          },
          {
            "binary_name": "cups-ppdc",
            "binary_version": "2.4.16-1ubuntu1.2"
          },
          {
            "binary_name": "cups-server-common",
            "binary_version": "2.4.16-1ubuntu1.2"
          },
          {
            "binary_name": "libcups2t64",
            "binary_version": "2.4.16-1ubuntu1.2"
          },
          {
            "binary_name": "libcupsimage2t64",
            "binary_version": "2.4.16-1ubuntu1.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "cups",
        "purl": "pkg:deb/ubuntu/cups@2.4.16-1ubuntu1.2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.16-1ubuntu1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.4.12-0ubuntu3",
        "2.4.12-0ubuntu5",
        "2.4.16-1ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "Ariel Silver discovered that CUPS incorrectly handled username comparisons\nduring authorization checks. A local attacker could possibly use this issue\nto gain unauthorized access to restricted operations. (CVE-2026-27447)\n\nAsim Viladi Oglu Manizada discovered that CUPS incorrectly handled\nnotify-recipient-uri values in the RSS notifier. A remote attacker could\npossibly use this issue to overwrite lp-writable files and cause a denial\nof service. (CVE-2026-34978)\n\nJacob Newman discovered that CUPS incorrectly handled filter option strings\nwhen processing job attributes. An attacker could use this issue to cause\nCUPS to crash, resulting in a denial of service, or possibly execute\narbitrary code. (CVE-2026-34979)\n\nAsim Viladi Oglu Manizada discovered that CUPS incorrectly handled\npage-border values in shared PostScript queues. A remote attacker could\npossibly use this issue to execute arbitrary code. (CVE-2026-34980)\n\nAsim Viladi Oglu Manizada discovered that CUPS incorrectly handled\nlocalhost authentication to attacker-controlled IPP services. A local\nattacker could possibly use this issue to overwrite arbitrary files\nand execute arbitrary code. (CVE-2026-34990)\n\nTomer Fichman discovered that CUPS incorrectly handled negative\njob-password-supported values. A local attacker could possibly use this\nissue to cause CUPS to crash, resulting in a denial of service.\n(CVE-2026-39314)\n\nTomer Fichman discovered that CUPS incorrectly handled temporary printer\ndeletion. An attacker could possibly use this issue to cause CUPS to crash,\nresulting in a denial of service, or to execute arbitrary code.\n(CVE-2026-39316)\n\nTomer Fichman discovered that CUPS incorrectly handled certain malformed\nSNMP responses. An attacker could possibly use this issue to obtain\nsensitive information. (CVE-2026-41079)",
  "id": "USN-8405-1",
  "modified": "2026-06-08T15:51:32Z",
  "published": "2026-06-08T15:51:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8405-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-27447"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-34978"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-34979"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-34980"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-34990"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-39314"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-39316"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-41079"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "cups vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-27447",
    "UBUNTU-CVE-2026-34978",
    "UBUNTU-CVE-2026-34979",
    "UBUNTU-CVE-2026-34980",
    "UBUNTU-CVE-2026-34990",
    "UBUNTU-CVE-2026-39314",
    "UBUNTU-CVE-2026-39316",
    "UBUNTU-CVE-2026-41079"
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

ubuntu-cve-2026-27447

Vulnerability from osv_ubuntu

CVE-2026-27447 (GCVE-0-2026-27447)

usn-8405-1

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature

Related by attack behaviour