{"schema":"threatline.record/2","record":{"id":"CVE-2026-106463","aliases":["GHSA-gp6m-x9vw-5c5x"],"summary":"Backstage has 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.","categories":["Applications & CMS"],"product":"@backstage/plugin-catalog-backend-module-gitlab","vendor":"backstage","ecosystem":"npm","affected_ranges":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-gp6m-x9vw-5c5x","source_modified_at":"2026-10-07T18:01:39Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"@backstage/plugin-catalog-backend-module-gitlab"},"range":"< 0.8.7"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-106463","source_modified_at":"2026-10-07T17:07:07.595Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"backstage","vendor":"backstage","versions":[{"version":"< 1.54.6","status":"affected"}],"defaultStatus":null},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-106463","source_modified_at":"2026-10-07T17:07:07.595Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"plugin-catalog-backend-module-gitlab","vendor":"@backstage","versions":[{"version":"< 0.8.7","status":"affected"}],"defaultStatus":null},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-gp6m-x9vw-5c5x","source_modified_at":"2026-10-07T18:15:10.729437546Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"@backstage/plugin-catalog-backend-module-gitlab","ecosystem":"npm","purl":"pkg:npm/%40backstage/plugin-catalog-backend-module-gitlab"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.8.7"}]}],"versions":[]}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-gp6m-x9vw-5c5x","source_modified_at":"2026-10-07T18:01:39Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"@backstage/plugin-catalog-backend-module-gitlab"},"version":"0.8.7"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-gp6m-x9vw-5c5x","source_modified_at":"2026-10-07T18:15:10.729437546Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"@backstage/plugin-catalog-backend-module-gitlab","ecosystem":"npm","purl":"pkg:npm/%40backstage/plugin-catalog-backend-module-gitlab"},"version":"0.8.7"}],"cvss":5.4,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00171,"percentile":0.06215,"score_date":"2026-10-23"},"published_at":"2026-10-06T20:32:45.755Z","modified_at":"2026-10-07T18:15:10.729437546Z","provenance":[{"source":"GitHub Advisory Database","url":"https://github.com/advisories/GHSA-gp6m-x9vw-5c5x","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-07T18:01:39Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-106463","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-07T17:07:07.595Z"},{"source":"OSV","url":"https://osv.dev/vulnerability/GHSA-gp6m-x9vw-5c5x","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-07T18:15:10.729437546Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-106463","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["GitHub Advisory Database","CVE List","OSV","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/backstage/backstage/security/advisories/GHSA-gp6m-x9vw-5c5x","tags":["x_refsource_CONFIRM"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106463","source":"GitHub Advisory Database"},{"source":"CVE List","url":"https://github.com/backstage/backstage/commit/c211b4b67d28efd2f4fac63e35e2ac515e305cb3","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/backstage/backstage/releases/tag/v1.54.6","tags":["x_refsource_MISC"]},{"url":"https://github.com/advisories/GHSA-gp6m-x9vw-5c5x","source":"GitHub Advisory Database"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-07T15:27:12.856170Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-07T18:15:10.729437546Z","content_hash":"67abb99c7b7c0e93f5a771965a047b05b8aa26a5a0b05994f21eed9b7c6b4744"}}