CVE-2025-68158

Authlib: 1-click Account Takeover

State
Published
Severity
5.7 Medium
Published
Jan 8, 2026
Updated
Mar 30, 2026
Reserved
Dec 15, 2025

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.15.7 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:NGitHub_M

Weaknesses

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

Affected Products

ProductVersions
authlibauthlib
  • >= 1.0.0, < 1.6.6Affected

References

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