CVE-2026-106506

Backstage is an open framework for building developer portals. Prior to 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by improper input validation in scaffolder task list ordering. An authenticated Backstage user with permission to create and read relevant scaffolder tasks may be able to infer confidential task data under specific conditions. Successful exploitation requires retained task secrets, visibility of a target task, knowledge of the secret structure, and repeated requests. This issue is fixed in version 4.1.0.
Configurations

Configuration 1 (hide)

cpe:2.3:a:linuxfoundation:backstage\/plugin-scaffolder-backend:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*

History

09 Oct 2026, 17:50

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/e673a869449874a9169e8f89852e75e862011b93 - () https://github.com/backstage/backstage/commit/e673a869449874a9169e8f89852e75e862011b93 - Patch
References () https://github.com/backstage/backstage/releases/tag/v1.54.6 - () https://github.com/backstage/backstage/releases/tag/v1.54.6 - Patch, Release Notes
References () https://github.com/backstage/backstage/security/advisories/GHSA-vwp5-f99x-x3rq - () https://github.com/backstage/backstage/security/advisories/GHSA-vwp5-f99x-x3rq - Mitigation, Vendor Advisory

06 Oct 2026, 22:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-10-06 22:17

Updated : 2026-10-09 17:50


NVD link : CVE-2026-106506

Mitre link : CVE-2026-106506

CVE.ORG link : CVE-2026-106506


JSON object : View

Products Affected

linuxfoundation

  • backstage
  • backstage\/plugin-scaffolder-backend
CWE
CWE-202

Exposure of Sensitive Information Through Data Queries

CWE-203

Observable Discrepancy