CVE-2026-106505
Backstage is an open framework for building developer portals. Prior to 1.14.6 and 1.15.4, the @backstage/plugin-techdocs-node package is affected by bypass of mkdocs configuration sanitizer in techdocs backend. Users with the ability to commit changes to a repository that uses TechDocs can circumvent the MkDocs configuration file sanitizer introduced in response to CVE-2026-25153 and execute arbitrary code on the TechDocs backend host during documentation generation. This issue is fixed in versions 1.14.6 and 1.15.4.
- Score
- CVSS 3.1 8.5 High
- Status
- Analyzed - security-advisories@github.com
- Published
- 2026-10-06
- Last modified
- 2026-10-09
- Weaknesses
- CWE-426, CWE-436
Affected products
- Backstage (Backstage)
- Plugin-techdocs-node (Backstage)
- Backstage (Linuxfoundation)
- Backstage Plugin-techdocs-node (Linuxfoundation)
References
- https://github.com/backstage/backstage/security/advisories/GHSA-p75x-jh7p-ppcx
- https://github.com/backstage/backstage/commit/a7d995f11a5d27f0efbdbe8bb6c21b06988c79c9
- https://github.com/backstage/backstage/commit/ef92d3d2b76046205c580e7152956514c15640db
- https://github.com/backstage/backstage/releases/tag/v1.50.5
- https://github.com/backstage/backstage/releases/tag/v1.54.6
