CVE-2025-68158
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2025-68158
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2025-68158.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 1.2.0-1+deb12u1 |
| debian | bullseye | affected | |
| debian | forky | fixed | 1.6.6-1 |
| debian | sid | fixed | 1.6.6-1 |
| debian | trixie | fixed | 1.6.0-1+deb13u1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | authlib | >=1.0.0,<1.6.6 | 1.6.6 |
References
- https://github.com/authlib/authlib/security/advisories/GHSA-fg6f-75jq-6523
- https://nvd.nist.gov/vuln/detail/CVE-2025-68158
- https://github.com/authlib/authlib/commit/2808378611dd6fb2532b189a9087877d8f0c0489
- https://github.com/authlib/authlib/commit/7974f45e4d7492ab5f527577677f2770ce423228
- https://github.com/authlib/authlib
- https://www.suse.com/security/cve/CVE-2025-68158.html
- https://security-tracker.debian.org/tracker/CVE-2025-68158
Verify integrity in audit chain (admin only). AS-IS.