CVE-2026-106558: Backstage: Improper validation of TechDocs MkDocs configuration
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.
References
- github.com/advisories/GHSA-qmw3-745m-w99g
- github.com/backstage/backstage/commit/32723a0fe4e12ed80535fc65d5331765c55aa91b
- github.com/backstage/backstage/commit/944edb51c8524d3664b18f2d57ba101b1c93b709
- github.com/backstage/backstage/commit/f18e9abcc6051491862b15e4fc60e69f8d52310c
- github.com/backstage/backstage/releases/tag/v1.50.7
- github.com/backstage/backstage/releases/tag/v1.54.9
- github.com/backstage/backstage/releases/tag/v1.55.2
- github.com/backstage/backstage/security/advisories/GHSA-qmw3-745m-w99g
- nvd.nist.gov/vuln/detail/CVE-2026-106558
Code Behaviors & Features
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