CVE-2026-106499
4.9
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Summary
Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package could expose secret-derived values in Scaffolder task logs. Deployments that configure sensitive scaffolder.defaultEnvironment.secrets and allow an attacker to create or modify Scaffolder templates are affected. A template author could cause secret-derived values used during template iteration to be persisted and exposed to users who can access the resulting task logs. This issue is fixed in version 4.1.0.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| backstage | backstage | < 1.54.6 | affected |
| @backstage | plugin-scaffolder-backend | < 4.1.0 | affected |
Weaknesses
- CWE-532: CWE-532: Insertion of Sensitive Information into Log File
References
- https://github.com/backstage/backstage/security/advisories/GHSA-mfvq-x7vr-rgqg
- https://github.com/backstage/backstage/commit/dc30fae2d96cb1606d36cc40b242f9b9e539bd70
- https://github.com/backstage/backstage/releases/tag/v1.54.6
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