The vulnerability of the JOSE library Authlib implementation for OAuth and OpenID Connect servers allows a perpetrator to induce a service failure.

The vulnerability of the JOSE library Authlib implementation for OAuth and OpenID Connect servers is related to insufficient validation of input data. Exploiting this vulnerability can allow a malicious actor to cause service failures...

CVE-2026-28490

Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to version 1.6.9, a cryptographic padding oracle vulnerability was identified in the Authlib Python library concerning the implementation of the JSON Web Encryption JWE RSA15 key management algorithm. Authlib registe...