VULNERABILITY INTELLIGENCE

CVE-2024-21664

CVSS score7.5 HIGH

EPSS probability0.86%

CISA KEVNot currently listed

Published2024-01-09

Last modified2026-06-17

Description

jwx is a Go module implementing various JWx (JWA/JWE/JWK/JWS/JWT, otherwise known as JOSE) technologies. Calling `jws.Parse` with a JSON serialized payload where the `signature` field is present while `protected` is absent can lead to a nil pointer dereference. The vulnerability can be used to crash/DOS a system doing JWS verification. This vulnerability has been patched in versions 2.0.19 and 1.2.28.