Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by sensitive information exposure in scaffolder task logs. An authenticated user who can create and read scaffolder tasks may be able to observe sensitive values in task logs in deployments with restrictive action permissions and affected templates. Exploitation requires a denied action whose input contains such a value. This issue is fixed in version 4.1.0.
References
| Link | Resource |
|---|---|
| https://github.com/backstage/backstage/commit/3eb3dc59eb0da0deccd532f19eb460bb452c9efb | Patch |
| https://github.com/backstage/backstage/releases/tag/v1.54.6 | Patch Release Notes |
| https://github.com/backstage/backstage/security/advisories/GHSA-4xvq-3m68-h444 | Mitigation Vendor Advisory |
Configurations
History
13 Oct 2026, 21:08
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Linuxfoundation backstage
Linuxfoundation Linuxfoundation backstage\/plugin-scaffolder-backend |
|
| CPE | cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:* cpe:2.3:a:linuxfoundation:backstage\/plugin-scaffolder-backend:*:*:*:*:*:*:*:* |
|
| References | () https://github.com/backstage/backstage/commit/3eb3dc59eb0da0deccd532f19eb460bb452c9efb - Patch | |
| References | () https://github.com/backstage/backstage/releases/tag/v1.54.6 - Patch, Release Notes | |
| References | () https://github.com/backstage/backstage/security/advisories/GHSA-4xvq-3m68-h444 - Mitigation, Vendor Advisory |
06 Oct 2026, 22:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-10-06 22:17
Updated : 2026-10-13 21:08
NVD link : CVE-2026-106504
Mitre link : CVE-2026-106504
CVE.ORG link : CVE-2026-106504
JSON object : View
Products Affected
linuxfoundation
- backstage
- backstage\/plugin-scaffolder-backend
CWE
CWE-532
Insertion of Sensitive Information into Log File