CVE-2025-64521

MEDIUM EPSS 9.1%
Published Nov 19, 20257mo ago · Modified Jun 17, 20262w ago
4.8 CVSS 3.1
Medium
Find Similar
Published Nov 19, 2025 7mo ago
Last Modified Jun 17, 2026 2w ago

Description

authentik is an open-source Identity Provider. Prior to versions 2025.8.5 and 2025.10.2, when authenticating with client_id and client_secret to an OAuth provider, authentik creates a service account for the provider. In previous authentik versions, authentication for this account was possible even when the account was deactivated. Other permissions are correctly applied and federation with other providers still take assigned policies correctly into account. authentik versions 2025.8.5 and 2025.10.2 fix this issue. A workaround involves adding a policy to the application that explicitly checks if the service account is still valid, and deny access if not.

CVSS Details

Base Score
4.8
Exploitability
1.7
Impact
2.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction Required
Scope Changed
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
9.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-289

Affected Products 2

VendorProductVersionRange
goauthentikauthentik*≥2025.8.0  –  <2025.8.5
goauthentikauthentik*≥2025.10.0  –  <2025.10.2

References 2

  • github.com https://github.com/goauthentik/authentik/commit/9dbdfc3f1be0f1be36f8efce2442897b2a54a71c
    Patch
  • github.com https://github.com/goauthentik/authentik/security/advisories/GHSA-xr73-jq5p-ch8r
    PatchThird Party Advisory

Remediation

  • github.com https://github.com/goauthentik/authentik/commit/9dbdfc3f1be0f1be36f8efce2442897b2a54a71c
    Patch
  • github.com https://github.com/goauthentik/authentik/security/advisories/GHSA-xr73-jq5p-ch8r
    PatchThird Party Advisory