GitHub Advisoryadvisory · npm
GHSA-95p4-vv4g-jxxm Backstage may expose sensitive information in Scaffolder task failure events
MEDIUM
Official page ↗
- Aliases
- CVE-2026-106502
- Ecosystem
- npm
- Packages
- @backstage/plugin-scaffolder-backend
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-532
- Reviewed
- 2026-10-07
Affected packages
• npm @backstage/plugin-scaffolder-backend: < 4.1.0 → fixed in 4.1.0
Description
Impact
Under specific template and failure conditions, an authenticated user may be able to retrieve sensitive values from Scaffolder task events. This can expose backend-managed credentials used during task execution.
Patches
Patched in `@backstage/plugin-scaffolder-backend` version `4.1.0`
Workarounds
• Restrict Scaffolder template execution and task-event access to trusted users until the patched version is deployed.
Related
Alias · CVE (1)
- CVE-2026-106502 Backstage is an open framework for building developer portals. vulnerability
Weakness · CWE (1)
- CWE-532 Insertion of Sensitive Information into Log File weakness
References
- https://github.com/backstage/backstage/security/advisories/GHSA-95p4-vv4g-jxxm web
- https://nvd.nist.gov/vuln/detail/CVE-2026-106502 advisory
- https://github.com/backstage/backstage/commit/3f1e869708f002fb9838624b7379deb251691b47 web
- https://github.com/backstage/backstage package
- https://github.com/backstage/backstage/releases/tag/v1.54.6 web