Disclosure summary
### Impact Under certain configurations, the catalog backend could process location types that were not intended to be allowed, potentially leading to unintended file access on the backend host. ### Patches Patched in `@backstage/plugin-catalog-backend` version `3.9.1` ### Workarounds No practical workarounds are available. Upgrade to the patched version.
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
GitHub Reviewed Security Advisories · GHSA-pcmq-25r3-5w9v
Open original source · Updated Oct 07, 2026
Backstage: Inconsistent enforcement of allowed location types during catalog processing
Source severity: LOW / 0
| Ecosystem | Package | Affected range | First patched |
|---|---|---|---|
| npm | @backstage/plugin-catalog-backend | < 3.9.1 | 3.9.1 |
Original records & references
- NIST NVD record
- CVE Program record
- github.com — Reviewed advisory
PUBLISHED 2026-10-07T13:59:32-04:00
MODIFIED 2026-10-07T13:59:34-04:00
INGESTED 2026-10-08T12:30:38-04:00