CVE-2025-68158: PYSEC-2026-1201 - Authlib has 1-click Account Takeover vulnerability

CVE-2025-68158 · Severity: medium · CVSS 5.7 · Published 2026-01-08

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.

Technologies: Authlib, authlib (PyPI). Vendors: Authlib, PyPI.

Quick answers

Is CVE-2025-68158 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-68158 being exploited in the wild.
How severe is CVE-2025-68158?
Medium severity, with a CVSS score of 5.7, published 8 January 2026.
Which products and versions are affected?
authlib (PyPI) ECOSYSTEM:introduced=1.0.0,fixed=1.6.6.
Is there a fix for CVE-2025-68158?
Yes. authlib (PyPI): upgrade to 1.6.6 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2025-68158?
Check whether you run Authlib or authlib (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • authlib (PyPI): upgrade to 1.6.6 or later
    pip install "authlib>=1.6.6"

Affected products

  • Authlib
  • authlib (PyPI) ECOSYSTEM:introduced=1.0.0,fixed=1.6.6

Identifiers

  • CVE-2025-68158
  • GHSA-fg6f-75jq-6523
  • PYSEC-2026-1201

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