GHSA-3xr5-8w6c-p5gwMediumCVSS 4.3
Backstage: Improper access control in backend action invocation
🔗 CVE IDs covered (1)
📋 Description
Impact
An authenticated user could invoke actions that an operator had excluded through action configuration. Existing action permissions and downstream authorization remain enforced.
Patches
Patched in @backstage/backend-defaults version 0.17.8
Workarounds
Limit access to action invocation endpoints to trusted service callers until upgrading.
🎯 Affected products1
- npm/@backstage/backend-defaults:< 0.17.8
🔗 References (5)
- https://github.com/backstage/backstage/security/advisories/GHSA-3xr5-8w6c-p5gw
- https://nvd.nist.gov/vuln/detail/CVE-2026-106495
- https://github.com/backstage/backstage/commit/a8fb34a990a69bcb745e85a3213cf9e5ba2d31a3
- https://github.com/backstage/backstage/releases/tag/v1.54.6
- https://github.com/advisories/GHSA-3xr5-8w6c-p5gw