Vulnerability · Published Apr 16, 2025 · Assigned by GitHub_M
CVE-2025-32791Permission policy information leakage in Backstage permission system
Medium 4.3
In plain English
A medium-severity security flaw in backstage from backstage. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
The Backstage Scaffolder plugin houses types and utilities for building scaffolder-related modules. A vulnerability in the Backstage permission plugin backend allows callers to extract some information about the conditional decisions returned by the permission policy installed in the permission backend. If the permission system is not in use or if the installed permission policy does not use conditional decisions, there is no impact. This issue has been patched in version 0.6.0 of the permissions backend. A workaround includes having administrators of the permission policies ensure that they are crafted in such a way that conditional decisions do not contain any sensitive information.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | @backstage/plugin-permission-backend | 0.6.0 | GHSA-f8j4-p5cr-p777 |
Affected products (as reported)
Weakness: CWE-213 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
References
- https://github.com/backstage/backstage/security/advisories/GHSA-f8j4-p5cr-p777 x_refsource_CONFIRM