CVE-2026-106503

Description

Backstage is an open framework for building developer portals. Prior to 3.3.1, 3.4.1, 4.0.3 and 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by scaffolder action input authorization bypass. An authenticated user with access to affected Scaffolder templates could bypass configured action restrictions. Depending on integration credentials, this could grant unauthorized access to repositories and related source-control resources. This issue is fixed in versions 3.3.1, 3.4.1, 4.0.3 and 4.1.0.

Traduire en français

Produits concernés

• backstage
• @backstage plugin-scaffolder-backend
• Linuxfoundation backstage\/plugin-scaffolder-backend
• Linuxfoundation backstage

Scores CVSS

Faiblesses (CWE)

• CWE-178
• CWE-284

Références

• https://github.com/backstage/backstage/commit/11c1384c0649b8ab26391c6a4e4f34b80ab0d188 Patch
• https://github.com/backstage/backstage/commit/a91ed72d540e80b62a73b39bb1563ff5018d52d1 Patch
• https://github.com/backstage/backstage/commit/e307e4f487103d815e484291b3fda778ab9983bf Patch
• https://github.com/backstage/backstage/releases/tag/v1.49.6 PatchRelease Notes
• https://github.com/backstage/backstage/releases/tag/v1.50.5 PatchRelease Notes
• https://github.com/backstage/backstage/releases/tag/v1.54.6 PatchRelease Notes
• https://github.com/backstage/backstage/security/advisories/GHSA-hmp2-4m7g-22cv MitigationVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories