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    CVE-2026-25922

    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.

    Published:Feb 12, 2026
    Last Modified:Apr 18, 2026
    EPS:Feb 12, 2026
    EPSS Score:0.0001
    CVSS Score:8.8

    Affected Products

    Vendor
    Goauthentik
    Product
    Authentik

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-55106 (CVSS 5.3) — authentik is an open-source identity provider. Prior to 2026.2.6 and 2026.5.5, a diagnostic action on the LDAP…
    CVE-2026-61574 (CVSS 8.8) — authentik is an open-source identity provider. Prior to 2026.2.6 and 2026.5.5, the Remote Access Control endpo…
    CVE-2026-54730 (CVSS 8.6) — authentik is an open-source identity provider. Prior to 2026.2.6 and 2026.5.5, the enterprise Google Chrome de…
    CVE-2026-49448 (CVSS 9.8) — authentik is an open-source identity provider. Prior to versions 2025.12.6, 2026.2.4, and 2026.5.1, the Source…
    CVE-2026-49443 (CVSS 8.8) — authentik is an open-source identity provider. Prior to versions 2025.12.6, 2026.2.4, and 2026.5.1, an attacke…
    CVE-2026-47201 (CVSS 8.5) — authentik is an open-source identity provider. Prior to versions 2025.12.5, 2026.2.3, and 2026.5.1, authentik'…
    CVE-2026-42849 (CVSS 9.3) — authentik is an open-source identity provider. Prior to versions 2025.12.5 and 2026.2.3, due to the implementa…
    CVE-2026-41569 (CVSS 6.9) — authentik is an open-source identity provider. Prior to version 2026.2.3, the WS-Federation provider validates…
    CVE-2026-41577 (CVSS 6.9) — authentik is an open-source identity provider. Prior to versions 2025.12.5 and 2026.2.3, the SAML source respo…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High