CVE-2026-41425: Authlib

Medium severity, CVSS 5.4. EPSS: 0.1% chance of exploitation in the next 30 days.

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.6.11, there is no CSRF protection on the cache feature in authlib.integrations.starlette_client.OAuth. This vulnerability is fixed in 1.6.11.

Affected products

• Authlib Authlib: before 1.6.11 (fixed in 1.6.11)

Published 2026-04-24. Last modified 2026-06-17.