MEDIUM 5.4

PYSEC-2026-25

Details

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.

Are you affected?

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Affected packages

PyPI / authlib

Introduced in: 0 Fixed in: 1.6.11

Fix pip install --upgrade 'authlib>=1.6.11'

References

https://github.com/authlib/authlib/security/advisories/GHSA-jj8c-mmj3-mmgv [EVIDENCE]