GHSA-qmw3-745m-w99g
Backstage: Improper validation of TechDocs MkDocs configuration
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | @backstage/plugin-techdocs-node | < 1.15.4 | 1.15.4 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
An 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.
### Patches
Patched in `@backstage/plugin-techdocs-node` version `1.15.4`.
### Workarounds
Use external TechDocs generation in an isolated environment without sensitive credentials or host access. Restrict and review changes to documentation configuration before generation.
References
External links from the advisory. They lead to third-party sites.
- 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