[ CVE-2026-94613 · Published 24 Sep 2026 ]
Vulnerability in goauthentik authentik
[ Description ]Official description
authentik is an open-source identity provider. Prior to 2026.2.7, 2026.5.7, and 2026.8.2, an unauthenticated attacker can submit a malformed SAML message to an authentik deployment using SAML in either the identity-provider or SAML source role. The message can stop the worker handling /application/saml/* or /source/saml/*, causing the requests assigned to that worker to fail. Worker process termination and automatic restart do not destroy database-backed sessions, but continued malicious messages can cause a sustained share of legitimate traffic to fail. Other protocol implementations are not affected. This issue is fixed in versions 2026.2.7, 2026.5.7, and 2026.8.2.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ References ]References
- docs.goauthentik.io/releases/2026.2
- docs.goauthentik.io/releases/2026.5
- docs.goauthentik.io/releases/2026.8
- github.com/goauthentik/authentik/commit/03d19d63b8d8dd7bc3de7cf6e57c6df341a9fc86
- github.com/goauthentik/authentik/commit/4cf2f803b1c2ef38c224eead375fd057a10ee8ac
- github.com/goauthentik/authentik/commit/732adad26bb97361b6bf25ef138df5c16471ba1f
- github.com/goauthentik/authentik/commit/a029f5372295bfeb1e334855f78601681cdc9a2d
- github.com/goauthentik/authentik/pull/25959
- github.com/goauthentik/authentik/pull/25964
- github.com/goauthentik/authentik/pull/25969
- github.com/goauthentik/authentik/pull/25974
- github.com/goauthentik/authentik/releases/tag/version/2026.2.7
- github.com/goauthentik/authentik/releases/tag/version/2026.5.7
- github.com/goauthentik/authentik/releases/tag/version/2026.8.2
- github.com/goauthentik/authentik/security/advisories/GHSA-cxwx-9x59-28qm