CVE-2026-106488Backstage: Improper authentication in the OIDC provider

Beschreibung

Backstage is an open framework for building developer portals. Prior to 0.4.20, the @backstage/plugin-auth-backend-module-oidc-provider package is affected by improper authentication in the oidc provider. Deployments using OIDC email-based identity resolution with a provider that permits unverified email addresses may allow an authenticated provider user to assume another catalog identity. This may grant access and permissions associated with that user. No direct availability impact is demonstrated. This issue is fixed in version 0.4.20.

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

Referenzen und Patches

• https://github.com/backstage/backstage/security/advisories/GHSA-826h-28h9-65hg MitigationVendor Advisory
• https://github.com/backstage/backstage/commit/1b1f05e82161aaabc226c1d7d498d746956bf942 Patch
• https://github.com/backstage/backstage/releases/tag/v1.54.6 PatchRelease Notes