CVE-2026-106496CWE-22CWE-863path-traversalbroken-access-control

CVE-2026-106496

Low · published October 7, 2026

CVSS v3.1
3.1
EPSS
0%
Percentile
14.7
In the wild
Unconfirmed
What it is

Backstage is an open framework for building developer portals. Prior to 3.9.1, the @backstage/plugin-catalog-backend package is affected by inconsistent enforcement of allowed location types during catalog processing. 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. This issue is fixed in version 3.9.1.

The record
Technical detail
CVSS v3.1
3.1 · LOW
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00244 · 14.7th percentile
Weaknesses
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'); CWE-863 · Incorrect Authorization
Published
2026-10-07T02:17Z
Affected products (2)
ProductVersionsFixed in
linuxfoundation/backstage_plugin-catalog-backend< 3.9.13.9.1
linuxfoundation/backstage< 1.54.61.54.6
References (3)
https://github.com/backstage/backstage/commit/23774b61560d851bc69cd6a77d12561b24d11afd · [email protected]https://github.com/backstage/backstage/releases/tag/v1.54.6 · [email protected]https://github.com/backstage/backstage/security/advisories/GHSA-pcmq-25r3-5w9v · [email protected]
EPSS history
Timeline
  • 08 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 06 OCT 21:17Z
    Backstage: Inconsistent enforcement of allowed location types during catalog processing
    cvelistv5