Backstage: Inconsistent enforcement of allowed location types during catalog processing
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.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | @backstage/plugin-catalog-backend | < 3.9.1 | 3.9.1 |
References
- https://github.com/backstage/backstage/security/advisories/GHSA-pcmq-25r3-5w9v
- https://nvd.nist.gov/vuln/detail/CVE-2026-106496
- https://github.com/backstage/backstage/commit/23774b61560d851bc69cd6a77d12561b24d11afd
- https://github.com/backstage/backstage
- https://github.com/backstage/backstage/releases/tag/v1.54.6
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N- Weakness (CWE)
CWE-22, CWE-863- Platform
- npm
- Package
@backstage/plugin-catalog-backend- Disclosed
- 07.10.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-pcmq-25r3-5w9v - CC BY 4.0
Vulnerability history: @backstage/plugin-catalog-backend
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 4
- First → latest
- 02.2023 10.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 2
- Medium 1
- Low 1
Disclosures per year
- 2023: 1
- 2024: 1
- 2025: 0
- 2026: 2
-
Backstage: Inconsistent enforcement of allowed location types during catalog processing this entry
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.