CVE-2026-12664

{
  "id": "CVE-2026-12664",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-22T01:16:59.070",
  "lastModified": "2026-10-27T14:08:34.937",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, under certain conditions, could have allowed an authenticated user with a read_api-scoped token to retrieve a project's incoming email address and create work items, bypassing the token's restrictions, due to insufficient scope enforcement on a GraphQL field."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "GitLab",
          "product": "GitLab",
          "defaultStatus": "unaffected",
          "cpes": [
            "cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*"
          ],
          "repo": "https://gitlab.com/gitlab-org/gitlab",
          "versions": [
            {
              "version": "18.2",
              "lessThan": "19.3.6",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "19.4",
              "lessThan": "19.4.3",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "19.5",
              "lessThan": "19.5.1",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
          "baseScore": 6.8,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 5.2
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-23T03:55:19.309171Z",
          "id": "CVE-2026-12664",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
              "versionStartIncluding": "18.2.0",
              "versionEndExcluding": "19.3.6",
              "matchCriteriaId": "A2A7C368-C163-494D-BA12-E8422573DF62"
            },
            {
              "vulnerable": true,
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              "versionStartIncluding": "18.2.0",
              "versionEndExcluding": "19.3.6",
              "matchCriteriaId": "33FBE96F-2E3D-4942-97E3-F6B5CD7B6304"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
              "versionStartIncluding": "19.4.0",
              "versionEndExcluding": "19.4.3",
              "matchCriteriaId": "12A85E28-FB9B-477D-BE6F-DE307EFEB4E0"
            },
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  ],
  "references": [
    {
      "url": "https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/",
      "source": "[email protected]",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://gitlab.com/gitlab-org/gitlab/-/work_items/603510",
      "source": "[email protected]",
      "tags": [
        "Permissions Required"
      ]
    },
    {
      "url": "https://hackerone.com/reports/3735499",
      "source": "[email protected]",
      "tags": [
        "Permissions Required"
      ]
    }
  ]
}