CVE-2026-25922highCWE-287 CWE-347

authentik has a Signature Verification Bypass via SAML Assertion Wrapping

21Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 8.8epss 0.2%

probabilidad de explotación

0.2%top 87% de las CVE

explotación observada

noninguna fuente lo reporta

authentik is an open-source identity provider. Prior to 2025.8.6, 2025.10.4, and 2025.12.4, when using a SAML Source that has the option Verify Assertion Signature under Verification Certificate enabled and not Verify Response Signature, or does not have the Encryption Certificate setting under Advanced Protocol settings configured, it was possible for an attacker to inject a malicious assertion before the signed assertion that authentik would use instead. authentik 2025.8.6, 2025.10.4, and 2025.12.4 fix this issue.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Productos afectados

goauthentik · authentik

Referencias

https://github.com/goauthentik/authentik/releases/tag/version%2F2025.10.4 https://github.com/goauthentik/authentik/releases/tag/version%2F2025.12.4 https://github.com/goauthentik/authentik/releases/tag/version%2F2025.8.6 https://github.com/goauthentik/authentik/security/advisories/GHSA-jh35-c4cc-wjm4