CVE-2026-114615

Authlib is a Python library which builds OAuth and OpenID Connect servers. From 1.3.1 until 1.9.0, OctKey.importkey checks asymmetric-key markers only at byte zero while Authlib's PEM loaders accept leading whitespace, comments, or a byte-order mark. In deployments that use the documented mixed...

EUVD-2026-108514

Authlib is a Python library which builds OAuth and OpenID Connect servers. From 1.3.1 until 1.9.0, OctKey.importkey checks asymmetric-key markers only at byte zero while Authlib's PEM loaders accept leading whitespace, comments, or a byte-order mark. In deployments that use the documented mixed...

CVE-2026-114615 Authlib incomplete algorithm-confusion fix permits HMAC forgery with prefixed public keys

Authlib is a Python library which builds OAuth and OpenID Connect servers. From 1.3.1 until 1.9.0, OctKey.importkey checks asymmetric-key markers only at byte zero while Authlib's PEM loaders accept leading whitespace, comments, or a byte-order mark. In deployments that use the documented mixed...

CVE-2026-114615

The Authlib Python library, used for building OAuth and OpenID Connect servers, contains a vulnerability in versions 1.3.1 through 1.9.0 (fixed in 1.9.0 ). The root cause is located in authlib/jose/rfc7518/oct_key.py, where OctKey.import_key() only checks for asymmetric-key markers at byte zero. ...