CVE-2026-106495: Backstage: Improper access control in backend action invocation

October 15, 2026

An authenticated user could invoke actions that an operator had excluded through action configuration. Existing action permissions and downstream authorization remain enforced.

References

github.com/advisories/GHSA-3xr5-8w6c-p5gw
github.com/backstage/backstage/commit/a8fb34a990a69bcb745e85a3213cf9e5ba2d31a3
github.com/backstage/backstage/releases/tag/v1.54.6
github.com/backstage/backstage/security/advisories/GHSA-3xr5-8w6c-p5gw
nvd.nist.gov/vuln/detail/CVE-2026-106495

Code Behaviors & Features

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