CVE-2026-85394 python-jose through 3.5.0 Algorithm Confusion via DER-encoded Public Key as HMAC Secret

python-jose through 3.5.0 fails to properly validate asymmetric keys in HMAC initialization, accepting DER-encoded public keys that lack PEM armor or SSH prefixes. Attackers holding the service's public key can forge HS256 tokens that pass verification when algorithms are not explicitly restricte...

Crypto++ Security Vulnerability

Crypto++ is a C++ cryptographic method library. A security vulnerability exists in Crypto++ version 8.9.0 that originates from a segmentation error when parsing a DER public key file. An attacker exploiting this vulnerability could create an incorrectly formatted DER public key file, and any user...