NIXPKGS-2026-0256
GitHub issue
published on 15 Feb 2026
by @LeSuisse Activity log
- Created automatic suggestion
-
@LeSuisse
removed
3 packages
- authentik-outposts.ldap
- authentik-outposts.proxy
- authentik-outposts.radius
- @LeSuisse accepted
- @LeSuisse published on GitHub
authentik has a Signature Verification Bypass via SAML Assertion Wrapping
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.
References
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https://github.com/goauthentik/authentik/security/advisories/GHSA-jh35-c4cc-wjm4 x_refsource_CONFIRM
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https://github.com/goauthentik/authentik/security/advisories/GHSA-jh35-c4cc-wjm4 x_refsource_CONFIRM
Affected products
authentik
- ==>= 2025.10.0-rc1, < 2025.12.4
- ==>= 2025.10.0-rc1, < 2025.10.4
- ==< 2025.8.6
Package maintainers
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@jvanbruegge Jan van Brügge <supermanitu@gmail.com>
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@rissson Marc Schmitt <marc.schmitt@risson.space>