CVE-2026-106463CWE-863broken-access-control

CVE-2026-106463

Medium · published October 7, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
6.2
In the wild
Unconfirmed
What it is

Backstage is an open framework for building developer portals. Prior to 0.8.7, the @backstage/plugin-catalog-backend-module-gitlab package is affected by improper authorization in gitlab organizational user ingestion. Deployments that enable GitLab organization event ingestion and rely on scoped catalog users as an access boundary may admit an unintended catalog identity. Depending on sign-in and permission configuration, this may allow unauthorized access with the permissions of a standard authenticated user. This issue is fixed in version 0.8.7.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00171 · 6.2th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-10-07T01:17Z
Affected products (2)
ProductVersionsFixed in
linuxfoundation/backstage\/plugin-catalog-backend-module-gitlab< 0.8.70.8.7
linuxfoundation/backstage< 1.54.61.54.6
References (3)
EPSS history
Timeline
  • 08 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 06 OCT 20:32Z
    Backstage: Improper authorization in GitLab organizational user ingestion
    cvelistv5