{"schema":"threatline.record/2","record":{"id":"CVE-2026-106497","aliases":["GHSA-8429-xpcj-3cg5"],"summary":"Backstage: Inconsistent catalog property permission evaluation","details":"Backstage is an open framework for building developer portals. Prior to 3.9.1, the @backstage/plugin-catalog-backend package is affected by inconsistent catalog property permission evaluation. In deployments that use affected value-based catalog permission conditions as a confidentiality boundary, an authenticated user could receive catalog entity data that policy authors intended to restrict. This issue is fixed in version 3.9.1.","categories":["Unclassified"],"product":"backstage","vendor":"backstage","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-106497","source_modified_at":"2026-10-07T16:19:32.903Z","fetched_at":"2026-10-23T18:48:36.087640Z","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-2026-106497","source_modified_at":"2026-10-07T16:19:32.903Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"plugin-catalog-backend","vendor":"@backstage","versions":[{"version":"< 3.9.1","status":"affected"}],"defaultStatus":null},{"source":"GitHub Advisory Database","source_url":"https://github.com/backstage/backstage/security/advisories/GHSA-8429-xpcj-3cg5","source_modified_at":"2026-10-06T21:17:52Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"ecosystem":"npm","name":"@backstage/plugin-catalog-backend"},"range":"< 3.9.1"}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/backstage/backstage/security/advisories/GHSA-8429-xpcj-3cg5","source_modified_at":"2026-10-06T21:17:52Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"ecosystem":"npm","name":"@backstage/plugin-catalog-backend"},"version":"3.9.1"}],"cvss":4.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00193,"percentile":0.08479,"score_date":"2026-10-23"},"published_at":"2026-10-06T21:18:31.150Z","modified_at":"2026-10-07T16:19:32.903Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-106497","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-07T16:19:32.903Z"},{"source":"GitHub Advisory Database","url":"https://github.com/backstage/backstage/security/advisories/GHSA-8429-xpcj-3cg5","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-06T21:17:52Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-106497","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","GitHub Advisory Database","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/backstage/backstage/security/advisories/GHSA-8429-xpcj-3cg5","tags":["x_refsource_CONFIRM"]},{"source":"CVE List","url":"https://github.com/backstage/backstage/commit/21424faa2e280a6bc6b9e5c5245952f16aafca7b","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/backstage/backstage/releases/tag/v1.54.6","tags":["x_refsource_MISC"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-07T16:19:14.828108Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-07T16:19:32.903Z","content_hash":"fb7517ef9233324fdb68fb1d4e626042c9240abc7f1bc7768bde3fc38a24c194"}}