CVE-2026-106502CWE-532

CVE-2026-106502

Medium · published October 7, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
20.5
In the wild
Unconfirmed
What it is

Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package could expose sensitive information in Scaffolder task failure events. Under specific template and failure conditions, an authenticated user may retrieve backend-managed credentials used during task execution from affected task events. This issue is fixed in version 4.1.0.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00290 · 20.5th percentile
Weakness
CWE-532 · Insertion of Sensitive Information into Log File
Published
2026-10-07T02:17Z
Affected products (2)
ProductVersionsFixed in
linuxfoundation/backstage\/plugin-scaffolder-backend< 4.1.04.1.0
linuxfoundation/backstage< 1.54.61.54.6
References (3)
https://github.com/backstage/backstage/commit/3f1e869708f002fb9838624b7379deb251691b47 · [email protected]https://github.com/backstage/backstage/releases/tag/v1.54.6 · [email protected]https://github.com/backstage/backstage/security/advisories/GHSA-95p4-vv4g-jxxm · [email protected]
EPSS history
Timeline
  • 08 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 06 OCT 21:34Z
    Backstage: Sensitive information may be exposed in Scaffolder task failure events
    cvelistv5