CVE-2026-106497
4.3
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Exploitability: 2.8 / Impact: 1.4
Source: security-advisories@github.com (Secondary)
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.
Affected (2)
Products: Linuxfoundation: Backstage Plugin Catalog Backend, Backstage
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| version < 3.9.1 |
Configuration B
| Vulnerable Software | Affected Versions |
|---|---|
| version < 1.54.6 |
Related CWEs
CWE-178
Improper Handling of Case Sensitivity
The product does not properly account for differences in case sensitivity when accessing or determining the properties of a resource, leading to inconsistent results.
CWE-863
Incorrect Authorization
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
References (3)
Source: security-advisories@github.com
Patch
Source: security-advisories@github.com
PatchRelease Notes
Source: security-advisories@github.com
MitigationVendor Advisory
Timeline
No history available yet.