CVE-2026-106497
MEDIUM
NVD
CVSS Score
4.3
Severity
MEDIUM
Published
Oct 06, 2026
Vendor
unknown
Description
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.