GHSA-f8j4-p5cr-p777 · Severity: medium · Ecosystem: npm — Permission policy information leakage in Backstage permission system
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.
Conclusion & alert: CVE-2025-32791 is rated Low Risk (36.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.33%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-04 | 0.43% | 0.33% | -0.10% |
| 2 | 2026-05-26 | 0.27% | 0.43% | +0.16% |
| 3 | 2026-05-25 | — | 0.27% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 3.1 | MEDIUM |
|
2.8 | 1.4 | [email protected] |
GHSA-f8j4-p5cr-p777 · Severity: medium · Ecosystem: npm — Permission policy information leakage in Backstage permission system
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| No affected products in dataset. | |||