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High severity7.5NVD Advisory· Published Jun 2, 2026· Updated Jun 4, 2026

CVE-2026-41577

CVE-2026-41577

Description

authentik is an open-source identity provider. Prior to versions 2025.12.5 and 2026.2.3, the SAML source response processor (ResponseProcessor.parse()) does not validate the Conditions element on assertions. NotBefore, NotOnOrAfter, and AudienceRestriction are all ignored. This allows replay of expired assertions and acceptance of assertions intended for other service providers. This issue has been patched in versions 2025.12.5 and 2026.2.3.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • authentik/authentik2 versions
    cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:goauthentik:authentik:*:*:*:*:*:*:*:*range: <2025.12.5
    • (no CPE)range: <2025.12.5, <2026.2.3
  • osv-coords
    pkg:bitnami/authentik
    Range: < 2025.12.5

Patches

Vulnerability mechanics

References

1

News mentions

1