{"id":"GHSA-qmw3-745m-w99g","revision":"53bd9a8bb0d34fef95e380adaee20374","records":[{"revision":"53bd9a8bb0d34fef95e380adaee20374","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-qmw3-745m-w99g","aliases":["CVE-2026-106558"],"title":"Backstage: Improper validation of TechDocs MkDocs configuration","description":"### Impact\n\nAn attacker who can provide configuration to a TechDocs build may execute code in the generator runtime. Impact is greatest when documentation generation runs with backend credentials or host access.\n\n### Patches\n\nPatched in `@backstage/plugin-techdocs-node` version `1.15.4`.\n\n### Workarounds\n\nUse external TechDocs generation in an isolated environment without sensitive credentials or host access. Restrict and review changes to documentation configuration before generation.","state":0,"publishedAt":"2026-10-07T18:03:12+00:00","modifiedAt":"2026-10-07T18:15:12.1653638+00:00","affected":[{"ecosystem":"npm","name":"@backstage/plugin-techdocs-node","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.15.4"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/backstage/backstage/security/advisories/GHSA-qmw3-745m-w99g","https://nvd.nist.gov/vuln/detail/CVE-2026-106558","https://github.com/backstage/backstage/commit/32723a0fe4e12ed80535fc65d5331765c55aa91b","https://github.com/backstage/backstage/commit/944edb51c8524d3664b18f2d57ba101b1c93b709","https://github.com/backstage/backstage/commit/f18e9abcc6051491862b15e4fc60e69f8d52310c","https://github.com/backstage/backstage","https://github.com/backstage/backstage/releases/tag/v1.50.7","https://github.com/backstage/backstage/releases/tag/v1.54.9","https://github.com/backstage/backstage/releases/tag/v1.55.2"],"sourceUrl":"https://github.com/advisories/GHSA-qmw3-745m-w99g","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-qmw3-745m-w99g","identifiers":["GHSA-qmw3-745m-w99g","CVE-2026-106558"]},"retained":false,"historicalAffected":[]}],"coverage":[]}