CVE-2026-106503: Backstage: 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.
References
- github.com/advisories/GHSA-hmp2-4m7g-22cv
- github.com/backstage/backstage/commit/11c1384c0649b8ab26391c6a4e4f34b80ab0d188
- github.com/backstage/backstage/commit/a91ed72d540e80b62a73b39bb1563ff5018d52d1
- github.com/backstage/backstage/commit/e307e4f487103d815e484291b3fda778ab9983bf
- github.com/backstage/backstage/releases/tag/v1.49.6
- github.com/backstage/backstage/releases/tag/v1.50.5
- github.com/backstage/backstage/releases/tag/v1.54.6
- github.com/backstage/backstage/security/advisories/GHSA-hmp2-4m7g-22cv
- nvd.nist.gov/vuln/detail/CVE-2026-106503
Code Behaviors & Features
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