{"schema":"threatline.record/2","record":{"id":"CVE-2026-106562","aliases":["GHSA-9325-vq29-gp3v"],"summary":"Backstage has incorrect authorization in search engine permission filtering","details":"### Impact\n\nAn authenticated Backstage user subject to a `DENY` policy for search document types could receive search results they were not authorized to view. This affects deployments with `permission.enabled: true` and an Elasticsearch or OpenSearch search backend.\n\n### Patches\n\n- Upgrade `@backstage/plugin-search-backend` to 2.1.6\n- Upgrade `@backstage/plugin-search-backend-module-elasticsearch` to 1.8.7\n\n### Workarounds\n\nIf you are unable to upgrade immediately:\n\n- Temporarily modify permission policies to use `CONDITIONAL` decisions with per-result filtering rather than blanket `DENY` for search document types\n- Restrict Elasticsearch/OpenSearch index access at the cluster level so that the search service account can only reach expected Backstage indices, limiting the blast radius if the authorization bypass is triggered.","categories":["Libraries & packages"],"product":"@backstage/plugin-search-backend","vendor":"backstage","ecosystem":"npm","affected_ranges":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-9325-vq29-gp3v","source_modified_at":"2026-10-07T18:02:54Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"@backstage/plugin-search-backend"},"range":"< 2.1.6"},{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-9325-vq29-gp3v","source_modified_at":"2026-10-07T18:02:54Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"@backstage/plugin-search-backend-module-elasticsearch"},"range":"< 1.8.7"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-106562","source_modified_at":"2026-10-07T16:14:59.044Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"backstage","vendor":"backstage","versions":[{"version":"< 1.54.1","status":"affected"}],"defaultStatus":null},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-106562","source_modified_at":"2026-10-07T16:14:59.044Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"plugin-search-backend","vendor":"@backstage","versions":[{"version":"< 2.1.6","status":"affected"}],"defaultStatus":null},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-106562","source_modified_at":"2026-10-07T16:14:59.044Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"plugin-search-backend-module-elasticsearch","vendor":"@backstage","versions":[{"version":"< 1.8.7","status":"affected"}],"defaultStatus":null},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-9325-vq29-gp3v","source_modified_at":"2026-10-07T18:15:11.183397966Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"@backstage/plugin-search-backend","purl":"pkg:npm/%40backstage/plugin-search-backend"},"ranges":[{"events":[{"introduced":"0"},{"fixed":"2.1.6"}],"type":"SEMVER"}],"versions":[]},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-9325-vq29-gp3v","source_modified_at":"2026-10-07T18:15:11.183397966Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"@backstage/plugin-search-backend-module-elasticsearch","purl":"pkg:npm/%40backstage/plugin-search-backend-module-elasticsearch"},"ranges":[{"events":[{"introduced":"0"},{"fixed":"1.8.7"}],"type":"SEMVER"}],"versions":[]}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-9325-vq29-gp3v","source_modified_at":"2026-10-07T18:02:54Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"@backstage/plugin-search-backend"},"version":"2.1.6"},{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-9325-vq29-gp3v","source_modified_at":"2026-10-07T18:02:54Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"@backstage/plugin-search-backend-module-elasticsearch"},"version":"1.8.7"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-9325-vq29-gp3v","source_modified_at":"2026-10-07T18:15:11.183397966Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"@backstage/plugin-search-backend","purl":"pkg:npm/%40backstage/plugin-search-backend"},"version":"2.1.6"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-9325-vq29-gp3v","source_modified_at":"2026-10-07T18:15:11.183397966Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"@backstage/plugin-search-backend-module-elasticsearch","purl":"pkg:npm/%40backstage/plugin-search-backend-module-elasticsearch"},"version":"1.8.7"}],"cvss":4.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00197,"percentile":0.08939,"score_date":"2026-10-23"},"published_at":"2026-10-07T14:54:13.183Z","modified_at":"2026-10-07T18:15:11.183397966Z","provenance":[{"source":"GitHub Advisory Database","url":"https://github.com/advisories/GHSA-9325-vq29-gp3v","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-07T18:02:54Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-106562","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-07T16:14:59.044Z"},{"source":"OSV","url":"https://osv.dev/vulnerability/GHSA-9325-vq29-gp3v","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-07T18:15:11.183397966Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-106562","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-9325-vq29-gp3v","tags":["x_refsource_CONFIRM"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-106562","source":"GitHub Advisory Database"},{"source":"CVE List","url":"https://github.com/backstage/backstage/commit/2d5d3e77d630455d6d48cfa8f31fd3c126fd6f29","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/backstage/backstage/releases/tag/v1.54.1","tags":["x_refsource_MISC"]},{"url":"https://github.com/advisories/GHSA-9325-vq29-gp3v","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":"2026-10-07T16:14:40.675570Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"ecosystem","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-07T18:15:11.183397966Z","content_hash":"8c889f30df9a10611de50e1af749ad120f8e2ff3c3bbe520e08a3fa886f58c54"}}