MEDIUM 4.3 NVD
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
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.
References
- https://github.com/backstage/backstage/commit/21424faa2e280a6bc6b9e5c5245952f16aafca7b
- https://github.com/backstage/backstage/releases/tag/v1.54.6
- https://github.com/backstage/backstage/security/advisories/GHSA-8429-xpcj-3cg5
This medium severity vulnerability with a CVSS score of 4.3 was published on 2026-10-06 via NVD.
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