CVE-2025-68158

HIGH EPSS 14.6%
Published Jan 8, 20265mo ago · Modified Jun 17, 20262w ago
8.8 CVSS 3.1
High
Find Similar
Published Jan 8, 2026 5mo ago
Last Modified Jun 17, 2026 2w ago

Description

Authlib is a Python library which builds OAuth and OpenID Connect servers. In versions 1.0.0 through 1.6.5, cache-backed state/request-token storage is not tied to the initiating user session, so CSRF is possible for any attacker that has a valid state (easily obtainable via an attacker-initiated authentication flow). When a cache is supplied to the OAuth client registry, FrameworkIntegration.set_state_data writes the entire state blob under _state_{app}_{state}, and get_state_data ignores the caller’s session altogether. This issue has been patched in version 1.6.6.

CVSS Details

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

Threat Intelligence

EPSS Exploit Probability
14.6% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-352 Cross-Site Request Forgery (CSRF) Authentication

Affected Products 1

VendorProductVersionRange
authlibauthlib* <1.6.6

References 3

  • github.com https://github.com/authlib/authlib/commit/2808378611dd6fb2532b189a9087877d8f0c0489
    Patch
  • github.com https://github.com/authlib/authlib/commit/7974f45e4d7492ab5f527577677f2770ce423228
    Patch
  • github.com https://github.com/authlib/authlib/security/advisories/GHSA-fg6f-75jq-6523
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/authlib/authlib/commit/2808378611dd6fb2532b189a9087877d8f0c0489
    Patch
  • github.com https://github.com/authlib/authlib/commit/7974f45e4d7492ab5f527577677f2770ce423228
    Patch