{"id":"GHSA-7mfx-xg57-53c9","revision":"aa456d2235314ae2a17ec20af2d1bd1a","records":[{"revision":"aa456d2235314ae2a17ec20af2d1bd1a","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-7mfx-xg57-53c9","aliases":["CVE-2026-106490"],"title":"Backstage: Improper input validation in TechDocs static content requests","description":"### Impact\n\nWhen using the Azure Blob Storage provider, an authenticated Backstage user may be able to read restricted TechDocs content when entity-level permissions are enabled. Deployments that intentionally disable the default backend authentication policy may have broader exposure.\n\n### Patches\n\nPatched in `@backstage/plugin-techdocs-backend` version `2.2.4`\n\n### Workarounds\n\n- Restrict access to the TechDocs backend to users who are permitted to view all stored documentation until an upgrade can be applied.\n- Keep the default backend authentication policy enabled.","state":0,"publishedAt":"2026-10-07T18:00:00+00:00","modifiedAt":"2026-10-07T18:15:13.1700356+00:00","affected":[{"ecosystem":"npm","name":"@backstage/plugin-techdocs-backend","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"2.2.4"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/backstage/backstage/security/advisories/GHSA-7mfx-xg57-53c9","https://nvd.nist.gov/vuln/detail/CVE-2026-106490","https://github.com/backstage/backstage/commit/40ecc4c2e88b0218125b0a3405d1f6315b321974","https://github.com/backstage/backstage","https://github.com/backstage/backstage/releases/tag/v1.54.6"],"sourceUrl":"https://github.com/advisories/GHSA-7mfx-xg57-53c9","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-7mfx-xg57-53c9","identifiers":["GHSA-7mfx-xg57-53c9","CVE-2026-106490"]},"retained":false,"historicalAffected":[]}],"coverage":[]}