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CVE-2026-106556

Backstage: Configuration bypass in TechDocs mkdocs.yml sanitization PUBLISHED

Description (CNA)

Backstage is an open framework for building developer portals. Prior to 1.14.6, the @backstage/plugin-techdocs-node package is affected by configuration bypass in techdocs mkdocs.yml sanitization. Insufficient validation of MkDocs configuration during TechDocs generation could allow an authenticated user who can register or modify documentation sources to execute arbitrary commands in the build environment. Impact is limited to resources accessible to the TechDocs backend or build container. This issue is fixed in versions 1.14.6 and 1.15.4.

Affected (CNA)

Vendor / productVersions
backstage / backstageaffected < 1.50.5; affected >= 1.51.0-next.0, < 1.54.6
@backstage / plugin-techdocs-nodeaffected < 1.14.6; affected >= 1.15.0, < 1.15.4

CWE

CWE-78, CWE-184

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.