{"id":"CVE-2026-106463","aliases":["GHSA-gp6m-x9vw-5c5x"],"url":"https://o3.security/vulnerability/CVE-2026-106463","summary":"Backstage: Improper authorization in GitLab organizational user ingestion","details":"### Impact\n\nDeployments that enable GitLab organization event ingestion and rely on scoped catalog users as an access boundary may admit an unintended catalog identity. Depending on sign-in and permission configuration, this may allow unauthorized access with the permissions of a standard authenticated user.\n\n### Patches\n\n- Upgrade `@backstage/plugin-catalog-backend-module-gitlab` to version `0.8.7`.\n\n### Workarounds\n\n- Disable event-driven GitLab organization ingestion and rely on scheduled discovery until upgrading.\n- Enforce organization membership independently at the authenticating proxy or sign-in resolver.","published":"2026-10-06T20:32:45.755Z","modified":"2026-10-21T02:50:17.933752366Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"@backstage/plugin-catalog-backend-module-gitlab","fixedVersion":"0.8.7"}],"fix":{"url":"https://github.com/backstage/backstage/commit/c211b4b67d28efd2f4fac63e35e2ac515e305cb3","label":"backstage/backstage@c211b4b"},"references":[{"type":"WEB","url":"https://github.com/backstage/backstage/releases/tag/v1.54.6"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/106xxx/CVE-2026-106463.json"},{"type":"ADVISORY","url":"https://github.com/backstage/backstage/security/advisories/GHSA-gp6m-x9vw-5c5x"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106463"},{"type":"FIX","url":"https://github.com/backstage/backstage/commit/c211b4b67d28efd2f4fac63e35e2ac515e305cb3"},{"type":"PACKAGE","url":"https://github.com/backstage/backstage"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-21T02:50:17.933752366Z"}}