CVE-2026-106497
Backstage is an open framework for building developer portals. Prior to 3.9.1, the @backstage/plugin-catalog-backend package is affected by inconsistent catalog property permission evaluation. In deployments that use affected value-based catalog permission conditions as a confidentiality boundary, an authenticated user could receive catalog entity data that policy authors intended to restrict. This issue is fixed in version 3.9.1.
- Score
- CVSS 3.1 4.3 Medium
- Status
- Analyzed - security-advisories@github.com
- Published
- 2026-10-06
- Last modified
- 2026-10-16
- Weaknesses
- CWE-178, CWE-863
Affected products
- Backstage (Backstage)
- Plugin-catalog-backend (Backstage)
- Backstage (Linuxfoundation)
- Backstage Plugin-catalog-backend (Linuxfoundation)
References
- https://github.com/backstage/backstage/security/advisories/GHSA-8429-xpcj-3cg5
- https://github.com/backstage/backstage/commit/21424faa2e280a6bc6b9e5c5245952f16aafca7b
- https://github.com/backstage/backstage/releases/tag/v1.54.6
