CVE-2026-41425

Authlib: Cross-site request forging when using cache

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

authlib

CVSS v3.1 GITHUB

5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

EPSS

0.14% chance of exploitation in the next 30 days, 3rd percentile

Published

2026-04-24

Updated

2026-04-27

Proof-of-concept exploits (1)

• amc40/browser-interaction-mcp-poc0★ · 2026-10-09

Security advisories

• authlib/authlib/security/advisories/GHSA-jj8c-mmj3-mmgv
• advisories/GHSA-jj8c-mmj3-mmgv

References

• CVE Record
• NVD entry

Related

• CVE-2025-68158