Vulnerability in Netty

CVE-2026-59900

Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, Netty's HTTP/2-to-HTTP/1.x translation layer (`Http2StreamFrameToHttpObjectCodec` and `InboundHttp2ToHttpAdapter`) fail…

Vulnerability class: HTTP Request Smuggling

Affected products

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

Weakness classification (CWE)

References