Résumé
Backstage: Improper input validation in Sentry scaffolder actions
Détails de l’avis
Impact
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.
Patches
Upgrade @backstage/plugin-scaffolder-backend-module-sentry to version 0.3.8 or later. The fixed package is available in Backstage v1.54.8 and Backstage v1.55.0.
The update removes custom action-level apiBaseUrl values. Move any such value to scaffolder.sentry.apiBaseUrl before upgrading.
Workarounds
- Disable the affected actions until the patched package is deployed.
- Restrict
scaffolder.action.executepermission for the affected Sentry actions to trusted users and templates.
Références
- https://github.com/advisories/GHSA-g734-fhp4-7mfp
- https://github.com/backstage/backstage/security/advisories/GHSA-g734-fhp4-7mfp
- https://nvd.nist.gov/vuln/detail/CVE-2026-106459
- https://github.com/backstage/backstage/commit/b0170fad7962fb8c3d71366b5265cf283c7bbcf7
- https://github.com/backstage/backstage/releases/tag/v1.54.8
- https://github.com/backstage/backstage/releases/tag/v1.55.0
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