Backstage is an open framework for building developer portals. From 0.3.0 until 0.3.8, the @backstage/plugin-scaffolder-backend-module-sentry package is affected by improper input validation in sentry scaffolder actions. An authenticated internal user who can execute the affected actions may cause the backend to contact unintended destinations and disclose Sentry integration credentials. Subsequent impact depends on network reachability and the privileges granted to the configured token. This issue is fixed in version 0.3.8.
History

Tue, 13 Oct 2026 15:45:00 +0000

Type Values Removed Values Added
First Time appeared Linuxfoundation
Linuxfoundation backstage
Linuxfoundation backstage\/plugin-scaffolder-backend-module-sentry
CPEs cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*
cpe:2.3:a:linuxfoundation:backstage\/plugin-scaffolder-backend-module-sentry:*:*:*:*:*:node.js:*:*
Vendors & Products Linuxfoundation
Linuxfoundation backstage
Linuxfoundation backstage\/plugin-scaffolder-backend-module-sentry

Fri, 09 Oct 2026 09:15:00 +0000

Type Values Removed Values Added
First Time appeared Backstage
Backstage backstage
Backstage plugin-scaffolder-backend-module-sentry
Vendors & Products Backstage
Backstage backstage
Backstage plugin-scaffolder-backend-module-sentry

Tue, 06 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
Description Backstage is an open framework for building developer portals. From 0.3.0 until 0.3.8, the @backstage/plugin-scaffolder-backend-module-sentry package is affected by improper input validation in sentry scaffolder actions. An authenticated internal user who can execute the affected actions may cause the backend to contact unintended destinations and disclose Sentry integration credentials. Subsequent impact depends on network reachability and the privileges granted to the configured token. This issue is fixed in version 0.3.8.
Title Backstage: Improper input validation in Sentry scaffolder actions
Weaknesses CWE-200
CWE-918
References
Metrics cvssV3_1

{'score': 8.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-10-06T20:19:37.541Z

Updated: 2026-10-07T16:24:39.671Z

Reserved: 2026-10-06T16:49:40.591Z

Link: CVE-2026-106459

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-10-06T21:17:16.450

Modified: 2026-10-13T15:27:07.093

Link: CVE-2026-106459

cve-icon Redhat

No data.