Vulnerability-Lookup

UBUNTU-CVE-2026-40080 (CVE-2026-40080)

Vulnerability from osv_ubuntu – Published: 2026-06-25 23:17 – Updated: 2026-06-25 23:17 – Source website

Details

Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior are vulnerable to Open Redirect through a substring check rather than a host check at str_contains($referer, CACTI_PATH_URL). When the user's login_opts == '1' (redirect to referer after login), the function used $_SERVER['HTTP_REFERER'] directly. An attacker could craft a referer such as https://evil.com/cacti/. Where CACTI_PATH_URL is /cacti/, the substring matches and the user is redirected to evil.com after login. The pre-existing validate_redirect_url() helper at lib/html_utility.php performed proper validation but was not invoked from auth_login_redirect(). This issue has been fixed in version 1.2.31.

Severity

6.1 (Medium)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-40080	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-40080	REPORT
	https://github.com/Cacti/cacti/security/advisorie…	REPORT
	https://github.com/Cacti/cacti/pull/7039	REPORT
	https://github.com/Cacti/cacti/releases/tag/relea…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "cacti",
            "binary_version": "0.8.8b+dfsg-5ubuntu0.2+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "cacti",
        "purl": "pkg:deb/ubuntu/cacti@0.8.8b+dfsg-5ubuntu0.2+esm2?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.8.8b+dfsg-3",
        "0.8.8b+dfsg-5",
        "0.8.8b+dfsg-5ubuntu0.1",
        "0.8.8b+dfsg-5ubuntu0.2",
        "0.8.8b+dfsg-5ubuntu0.2+esm1",
        "0.8.8b+dfsg-5ubuntu0.2+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "cacti",
            "binary_version": "0.8.8f+ds1-4ubuntu4.16.04.2+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "cacti",
        "purl": "pkg:deb/ubuntu/cacti@0.8.8f+ds1-4ubuntu4.16.04.2+esm2?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.8.8f+ds1-2",
        "0.8.8f+ds1-3",
        "0.8.8f+ds1-4",
        "0.8.8f+ds1-4ubuntu1",
        "0.8.8f+ds1-4ubuntu2",
        "0.8.8f+ds1-4ubuntu3",
        "0.8.8f+ds1-4ubuntu4",
        "0.8.8f+ds1-4ubuntu4.16.04",
        "0.8.8f+ds1-4ubuntu4.16.04.1",
        "0.8.8f+ds1-4ubuntu4.16.04.2",
        "0.8.8f+ds1-4ubuntu4.16.04.2+esm1",
        "0.8.8f+ds1-4ubuntu4.16.04.2+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "cacti",
            "binary_version": "1.1.38+ds1-1ubuntu0.1~esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "cacti",
        "purl": "pkg:deb/ubuntu/cacti@1.1.38+ds1-1ubuntu0.1~esm4?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1.18+ds1-1",
        "1.1.27+ds1-2",
        "1.1.27+ds1-3",
        "1.1.28+ds1-2",
        "1.1.35+ds1-1",
        "1.1.36+ds1-1",
        "1.1.38+ds1-1",
        "1.1.38+ds1-1ubuntu0.1~esm1",
        "1.1.38+ds1-1ubuntu0.1~esm3",
        "1.1.38+ds1-1ubuntu0.1~esm4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "cacti",
            "binary_version": "1.2.10+ds1-1ubuntu1.1+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "cacti",
        "purl": "pkg:deb/ubuntu/cacti@1.2.10+ds1-1ubuntu1.1+esm2?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.2.4+ds1-2ubuntu3",
        "1.2.9+ds1-1ubuntu1",
        "1.2.9+ds1-1ubuntu2",
        "1.2.10+ds1-1ubuntu1",
        "1.2.10+ds1-1ubuntu1+esm1",
        "1.2.10+ds1-1ubuntu1.1",
        "1.2.10+ds1-1ubuntu1.1+esm1",
        "1.2.10+ds1-1ubuntu1.1+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "cacti",
            "binary_version": "1.2.19+ds1-2ubuntu1.1+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "cacti",
        "purl": "pkg:deb/ubuntu/cacti@1.2.19+ds1-2ubuntu1.1+esm2?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.2.16+ds1-2ubuntu1",
        "1.2.19+ds1-2ubuntu1",
        "1.2.19+ds1-2ubuntu1+esm1",
        "1.2.19+ds1-2ubuntu1.1",
        "1.2.19+ds1-2ubuntu1.1+esm1",
        "1.2.19+ds1-2ubuntu1.1+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "cacti",
            "binary_version": "1.2.26+ds1-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "cacti",
        "purl": "pkg:deb/ubuntu/cacti@1.2.26+ds1-1ubuntu0.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.2.25+ds1-2",
        "1.2.26+ds1-1",
        "1.2.26+ds1-1ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "cacti",
            "binary_version": "1.2.30+ds1-1ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "cacti",
        "purl": "pkg:deb/ubuntu/cacti@1.2.30+ds1-1ubuntu1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.2.28+ds1-4ubuntu1",
        "1.2.30+ds1-1ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "cacti",
            "binary_version": "1.2.30+ds1-1ubuntu2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "cacti",
        "purl": "pkg:deb/ubuntu/cacti@1.2.30+ds1-1ubuntu2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.2.30+ds1-1ubuntu1",
        "1.2.30+ds1-1ubuntu2"
      ]
    }
  ],
  "aliases": [],
  "details": "Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior are vulnerable to Open Redirect through a substring check rather than a host check at str_contains($referer, CACTI_PATH_URL). When the user\u0027s login_opts == \u00271\u0027 (redirect to referer after login), the function used $_SERVER[\u0027HTTP_REFERER\u0027] directly.  An attacker could craft a referer such as https://evil.com/cacti/. Where CACTI_PATH_URL is /cacti/, the substring matches and the user is redirected to evil.com after login. The pre-existing validate_redirect_url() helper at lib/html_utility.php performed proper validation but was not invoked from auth_login_redirect(). This issue has been fixed in version 1.2.31.",
  "id": "UBUNTU-CVE-2026-40080",
  "modified": "2026-06-25T23:17:00Z",
  "published": "2026-06-25T23:17:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-40080"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-40080"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Cacti/cacti/security/advisories/GHSA-6gr7-53g8-vchq"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Cacti/cacti/pull/7039"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/Cacti/cacti/releases/tag/release%2F1.2.31"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-40080"
  ]
}

CVE-2026-40080 (GCVE-0-2026-40080)

Vulnerability from cvelistv5 – Published: 2026-06-25 22:29 – Updated: 2026-06-26 14:09

Title

Cacti: Open Redirect via HTTP_REFERER substring check in auth_login_redirect

Summary

Severity

6.1 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-26 14:08 UTC

CWE

CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')

Assigner

GitHub_M mitre root Scorecard

References

2 references

URL	Tags
https://github.com/Cacti/cacti/security/advisorie…	x_refsource_CONFIRM
https://github.com/Cacti/cacti/releases/tag/relea…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Cacti	cacti	Affected: < 1.2.31

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-40080",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-26T14:08:58.081501Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-26T14:09:20.592Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/Cacti/cacti/security/advisories/GHSA-6gr7-53g8-vchq"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "cacti",
          "vendor": "Cacti",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.2.31"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior are vulnerable to Open Redirect through a substring check rather than a host check at str_contains($referer, CACTI_PATH_URL). When the user\u0027s login_opts == \u00271\u0027 (redirect to referer after login), the function used $_SERVER[\u0027HTTP_REFERER\u0027] directly.  An attacker could craft a referer such as https://evil.com/cacti/. Where CACTI_PATH_URL is /cacti/, the substring matches and the user is redirected to evil.com after login. The pre-existing validate_redirect_url() helper at lib/html_utility.php performed proper validation but was not invoked from auth_login_redirect(). This issue has been fixed in version 1.2.31."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-601",
              "description": "CWE-601: URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-25T22:29:51.784Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/Cacti/cacti/security/advisories/GHSA-6gr7-53g8-vchq",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/Cacti/cacti/security/advisories/GHSA-6gr7-53g8-vchq"
        },
        {
          "name": "https://github.com/Cacti/cacti/releases/tag/release%2F1.2.31",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Cacti/cacti/releases/tag/release%2F1.2.31"
        }
      ],
      "source": {
        "advisory": "GHSA-6gr7-53g8-vchq",
        "discovery": "UNKNOWN"
      },
      "title": "Cacti: Open Redirect via HTTP_REFERER substring check in auth_login_redirect"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-40080",
    "datePublished": "2026-06-25T22:29:51.784Z",
    "dateReserved": "2026-04-09T00:39:12.205Z",
    "dateUpdated": "2026-06-26T14:09:20.592Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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.

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UBUNTU-CVE-2026-40080 (CVE-2026-40080)

CVE-2026-40080 (GCVE-0-2026-40080)

Tags

Sightings

Nomenclature

Related by attack behaviour