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CVE Vulnerability Details :
CVE-2026-25922
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-12 Feb, 2026 | 19:38
Updated At-12 Feb, 2026 | 19:38
Rejected At-
▼CVE Numbering Authority (CNA)
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.

Affected Products
Vendor
goauthentik
Product
authentik
Versions
Affected
  • < 2025.8.6
  • >= 2025.10.0-rc1, < 2025.10.4
  • >= 2025.10.0-rc1, < 2025.12.4
Problem Types
TypeCWE IDDescription
CWECWE-287CWE-287: Improper Authentication
CWECWE-347CWE-347: Improper Verification of Cryptographic Signature
Type: CWE
CWE ID: CWE-287
Description: CWE-287: Improper Authentication
Type: CWE
CWE ID: CWE-347
Description: CWE-347: Improper Verification of Cryptographic Signature
Metrics
VersionBase scoreBase severityVector
3.18.8HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/goauthentik/authentik/security/advisories/GHSA-jh35-c4cc-wjm4
x_refsource_CONFIRM
https://github.com/goauthentik/authentik/releases/tag/version%2F2025.10.4
x_refsource_MISC
https://github.com/goauthentik/authentik/releases/tag/version%2F2025.12.4
x_refsource_MISC
https://github.com/goauthentik/authentik/releases/tag/version%2F2025.8.6
x_refsource_MISC
Hyperlink: https://github.com/goauthentik/authentik/security/advisories/GHSA-jh35-c4cc-wjm4
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/goauthentik/authentik/releases/tag/version%2F2025.10.4
Resource:
x_refsource_MISC
Hyperlink: https://github.com/goauthentik/authentik/releases/tag/version%2F2025.12.4
Resource:
x_refsource_MISC
Hyperlink: https://github.com/goauthentik/authentik/releases/tag/version%2F2025.8.6
Resource:
x_refsource_MISC
Details not found