Incorrect Authorization in GitLab

{
  "id": "84941515fec87790b151733a4b0ddb9557bc0a1c71f80b28df8f78c6e51be37b",
  "url": "https://osv.dev/vulnerability/BIT-gitlab-2026-16301",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Incorrect Authorization in GitLab",
    "summary": "GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.7 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an authenticated user with Developer role to execute CI/CD pipelines on protected branches without authorization due to improper authorization checks in the downstream pipeline creation service.",
    "evidence": "osv:BIT-gitlab-2026-16301",
    "products": [
      {
        "name": {
          "value": "gitlab",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "19.2.8",
            "evidence": "/affected/0/ranges"
          },
          {
            "value": "19.3.5",
            "evidence": "/affected/0/ranges"
          },
          {
            "value": "19.4.2",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "BIT-gitlab-2026-16301",
      "aliases": [
        "BIT-gitlab-2026-16301",
        "CVE-2026-16301"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "18.7.0"
                },
                {
                  "fixed": "19.2.8"
                },
                {
                  "introduced": "19.3.0"
                },
                {
                  "fixed": "19.3.5"
                },
                {
                  "introduced": "19.4.0"
                },
                {
                  "fixed": "19.4.2"
                }
              ]
            }
          ],
          "package": {
            "name": "gitlab",
            "purl": "pkg:bitnami/gitlab",
            "ecosystem": "Bitnami"
          },
          "severity": [
            {
              "type": "CVSS_V3",
              "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N"
            }
          ],
          "database_specific": {
            "source": "https://github.com/bitnami/vulndb/tree/main/data/gitlab/BIT-gitlab-2026-16301.json"
          }
        }
      ],
      "modified": "2026-10-16T09:45:07.680968009Z",
      "provider": "osv",
      "references": [
        "https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-4-2-released/",
        "https://gitlab.com/gitlab-org/gitlab/-/work_items/606501",
        "https://hackerone.com/reports/3853866",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-16301"
      ],
      "provider_metadata": {
        "cpes": [
          "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*",
          "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*"
        ],
        "severity": "High"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-16301",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/database_specific/severity"
  },
  "source_id": "core-osv",
  "document_id": 338160,
  "published_at": "2026-10-16T09:02:39.776+00:00"
}