CVE-2026-56746

Netty is a network application framework for development of protocol servers and clients. Versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, are vulnerable to security control bypass during the origin evaluation process. CorsHandler provides a shortCircuit...

CVE-2026-56746

Netty (versions 4.2.0.Final–4.2.15.Final and 4.1.0.Final–4.1.135.Final) contains a security control bypass in CorsHandler’s origin evaluation due to a logical operator error. An attacker can bypass the short-circuit protection by sending Origin: null, causing unauthorized requests to reach the ba...

CVE-2026-56746 Netty has a Security Control Bypass via CORS Short-Circuit Failure

Netty is a network application framework for development of protocol servers and clients. Versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, are vulnerable to security control bypass during the origin evaluation process. CorsHandler provides a shortCircuit...