Resource exhaustion in Netty

CVE-2026-55851

Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final up to (but not including) 4.2.16.Final, and 4.1.0.Final up to (but not including) 4.1.135, the `HAProxyMessageDecoder` in Net…

Vulnerability class: DoS (Denial of Service)

Affected products

  • Netty — versions >= 4.2.0.Final, < 4.2.16.Final, >= 4.1.0.Final, < 4.1.136.Final

Weakness classification (CWE)

References