Vulnerability-Lookup

UBUNTU-CVE-2026-5091 (CVE-2026-5091)

Vulnerability from osv_ubuntu – Published: 2026-05-21 22:16 – Updated: 2026-05-27 19:09 – Source website

Details

Catalyst::Plugin::Authentication versions through 0.10024 for Perl is susceptible to timing attacks. These versions use Perl's built-in eq comparison. Discrepencies in timing could be used to guess the underlying hash or password.

Severity

5.1 (Medium)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-5091	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-5091	REPORT
	https://lists.security.metacpan.org/cve-announce/…	REPORT
	https://github.com/perl-catalyst/Catalyst-Plugin-…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcatalyst-plugin-authentication-perl",
            "binary_version": "0.10023-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "libcatalyst-plugin-authentication-perl",
        "purl": "pkg:deb/ubuntu/libcatalyst-plugin-authentication-perl@0.10023-2?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.10023-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcatalyst-plugin-authentication-perl",
            "binary_version": "0.10023-3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "libcatalyst-plugin-authentication-perl",
        "purl": "pkg:deb/ubuntu/libcatalyst-plugin-authentication-perl@0.10023-3?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.10023-3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcatalyst-plugin-authentication-perl",
            "binary_version": "0.10023-3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "libcatalyst-plugin-authentication-perl",
        "purl": "pkg:deb/ubuntu/libcatalyst-plugin-authentication-perl@0.10023-3?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.10023-3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcatalyst-plugin-authentication-perl",
            "binary_version": "0.10023-3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libcatalyst-plugin-authentication-perl",
        "purl": "pkg:deb/ubuntu/libcatalyst-plugin-authentication-perl@0.10023-3?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.10023-3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcatalyst-plugin-authentication-perl",
            "binary_version": "0.10023-4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libcatalyst-plugin-authentication-perl",
        "purl": "pkg:deb/ubuntu/libcatalyst-plugin-authentication-perl@0.10023-4?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.10023-4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcatalyst-plugin-authentication-perl",
            "binary_version": "0.10024-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "libcatalyst-plugin-authentication-perl",
        "purl": "pkg:deb/ubuntu/libcatalyst-plugin-authentication-perl@0.10024-1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.10024-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libcatalyst-plugin-authentication-perl",
            "binary_version": "0.10024-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "libcatalyst-plugin-authentication-perl",
        "purl": "pkg:deb/ubuntu/libcatalyst-plugin-authentication-perl@0.10024-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.10024-1"
      ]
    }
  ],
  "aliases": [],
  "details": "Catalyst::Plugin::Authentication versions through 0.10024 for Perl  is susceptible to timing attacks. These versions use Perl\u0027s built-in eq comparison. Discrepencies in timing could be used to guess the underlying hash or password.",
  "id": "UBUNTU-CVE-2026-5091",
  "modified": "2026-05-27T19:09:36Z",
  "published": "2026-05-21T22:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-5091"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-5091"
    },
    {
      "type": "REPORT",
      "url": "https://lists.security.metacpan.org/cve-announce/msg/40281889/"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/perl-catalyst/Catalyst-Plugin-Authentication/commit/b0515f492257438cf07082acf1e10d06e8088a5e"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-5091"
  ]
}

CVE-2026-5091 (GCVE-0-2026-5091)

Vulnerability from cvelistv5 – Published: 2026-05-21 21:07 – Updated: 2026-05-22 14:13

Title

Catalyst::Plugin::Authentication versions through 0.10024 for Perl is susceptible to timing attacks

Summary

Severity

5.1 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-22 14:13 UTC

CWE

CWE-208 - Observable Timing Discrepancy

Assigner

CPANSec redhat root

References

3 references

URL	Tags
https://metacpan.org/release/ETHER/Catalyst-Plugi…	release-notes
https://github.com/perl-catalyst/Catalyst-Plugin-…	patch
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

1 product

Vendor	Product	Version
JJNAPIORK	Catalyst::Plugin::Authentication	Affected: 0 , ≤ 0.10024 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-05-22T01:40:38.985Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/05/21/19"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "LOCAL",
              "availabilityImpact": "NONE",
              "baseScore": 5.1,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-5091",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-22T14:13:45.514337Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-22T14:13:48.996Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "Catalyst-Plugin-Authentication",
          "product": "Catalyst::Plugin::Authentication",
          "programFiles": [
            "lib/Catalyst/Authentication/Credential/Password.pm"
          ],
          "programRoutines": [
            {
              "name": "Catalyst::Authentication::Credential::Password::check_password"
            }
          ],
          "repo": "https://github.com/perl-catalyst/Catalyst-Plugin-Authentication",
          "vendor": "JJNAPIORK",
          "versions": [
            {
              "lessThanOrEqual": "0.10024",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Catalyst::Plugin::Authentication versions through 0.10024 for Perl  is susceptible to timing attacks.\n\nThese versions use Perl\u0027s built-in eq comparison. Discrepencies in timing could be used to guess the underlying hash or password."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-208",
              "description": "CWE-208 Observable Timing Discrepancy",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-21T21:07:26.432Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://metacpan.org/release/ETHER/Catalyst-Plugin-Authentication-0.10_025/changes"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/perl-catalyst/Catalyst-Plugin-Authentication/commit/b0515f492257438cf07082acf1e10d06e8088a5e.patch"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to version 0.10026 or later."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Catalyst::Plugin::Authentication versions through 0.10024 for Perl is susceptible to timing attacks",
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-5091",
    "datePublished": "2026-05-21T21:07:26.432Z",
    "dateReserved": "2026-03-28T19:36:44.345Z",
    "dateUpdated": "2026-05-22T14:13:48.996Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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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.

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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.
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UBUNTU-CVE-2026-5091 (CVE-2026-5091)

CVE-2026-5091 (GCVE-0-2026-5091)

Tags

Sightings

Nomenclature

Related by attack behaviour