CVE-2026-25922

HIGH EPSS 6.1%
Published Feb 12, 20264mo ago · Modified Feb 18, 20264mo ago
8.8 CVSS 3.1
High
Find Similar
Published Feb 12, 2026 4mo ago
Last Modified Feb 18, 2026 4mo ago

Description

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 Details

Base Score
8.8
Exploitability
2.8
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
6.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-287 Improper Authentication Authentication
CWE-347

Affected Products 3

VendorProductVersionRange
goauthentikauthentik* <2025.8.6
goauthentikauthentik*≥2025.10.0  –  <2025.10.4
goauthentikauthentik*≥2025.12.0  –  <2025.12.4

References 4

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.