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.
References
| Link | Resource |
|---|---|
| https://github.com/backstage/backstage/commit/dc30fae2d96cb1606d36cc40b242f9b9e539bd70 | Patch |
| https://github.com/backstage/backstage/releases/tag/v1.54.6 | Patch Release Notes |
| https://github.com/backstage/backstage/security/advisories/GHSA-mfvq-x7vr-rgqg | Mitigation Vendor Advisory |
Configurations
History
15 Oct 2026, 02:16
| 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/dc30fae2d96cb1606d36cc40b242f9b9e539bd70 - Patch | |
| References | () https://github.com/backstage/backstage/releases/tag/v1.54.6 - Patch, Release Notes | |
| References | () https://github.com/backstage/backstage/security/advisories/GHSA-mfvq-x7vr-rgqg - Mitigation, Vendor Advisory |
06 Oct 2026, 22:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-10-06 22:17
Updated : 2026-10-15 02:16
NVD link : CVE-2026-106499
Mitre link : CVE-2026-106499
CVE.ORG link : CVE-2026-106499
JSON object : View
Products Affected
linuxfoundation
- backstage
- backstage\/plugin-scaffolder-backend
CWE
CWE-532
Insertion of Sensitive Information into Log File
