CVE-2026-106489
CVE-2026-106489 · Backstage: Improper authorization enforcement for TechDocs static content
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Backstage is an open framework for building developer portals. Prior to 2.2.4, the @backstage/plugin-techdocs-backend package is affected by improper authorization enforcement for techdocs static content. An authenticated user with access to one TechDocs documentation site could craft a URL able to read documentation belonging to a different entity. This only affects deployments using the external TechDocs builder with an external storage provider (S3, GCS, etc.) and the permission framework enabled. Instances that do not use the permission framework are unaffected, since TechDocs content is visible to all authenticated users by design. This issue is fixed in version 2.2.4.
CVSS 6.5 · Medium · EPSS 0.3% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
backstage
- Versions
- < 1.54.6: Affected
No fix published
plugin-techdocs-backend
- Versions
- < 2.2.4: Affected
No fix published
@backstage/plugin-techdocs-backend npm
- Affected ranges
- SEMVER: < 2.2.4
Update to 2.2.4