gitlab-rails-ce-18.9 — security advisory

{
  "id": "552d165768f5df188394535ef9416d0ccdca146d2b20e96d0d1612d158a9b60d",
  "url": "https://osv.dev/vulnerability/CGA-p4rw-qj69-xq67",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CGA-p4rw-qj69-xq67",
    "summary": "CGA-p4rw-qj69-xq67",
    "evidence": "osv:CGA-p4rw-qj69-xq67",
    "products": [
      {
        "name": {
          "value": "gitlab-rails-ce-18.9",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CGA-p4rw-qj69-xq67",
      "aliases": [
        "CGA-p4rw-qj69-xq67"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "gitlab-rails-ce-18.9",
            "purl": "pkg:apk/chainguard/gitlab-rails-ce-18.9?arch=aarch64",
            "ecosystem": "Chainguard"
          },
          "database_specific": {
            "source": "https://advisories.cgr.dev/chainguard/v3/osv/CGA-p4rw-qj69-xq67.json",
            "chainguard": {
              "applies_to_subpackages": false
            }
          },
          "ecosystem_specific": {
            "components": [
              {
                "component_name": "dompurify",
                "component_purl": "pkg:npm/dompurify@3.3.1",
                "component_type": "npm",
                "component_version": "3.3.1",
                "component_location": "/srv/gitlab/yarn.lock",
                "latest_event_status": "fix_not_planned",
                "latest_event_timestamp": "2026-10-24T00:50:56Z"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-24T01:45:55.876586040Z",
      "provider": "osv",
      "upstream": [
        "GHSA-mrv2-3pqr-j5jr"
      ],
      "references": [
        "https://github.com/cure53/DOMPurify/security/advisories/GHSA-mrv2-3pqr-j5jr",
        "https://github.com/cure53/DOMPurify/pull/1672",
        "https://github.com/cure53/DOMPurify/commit/a77a3e78b59f72fa4d1c83f22e121ad9cc7d3575",
        "https://github.com/cure53/DOMPurify",
        "https://github.com/cure53/DOMPurify/releases/tag/3.4.17"
      ]
    },
    "related_cves": [],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 427912,
  "published_at": "2026-10-23T00:34:32+00:00"
}