CVE-2026-42580

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Netty's chunk size parser silently overflows int, enabling request smuggling attacks. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final...

CVE-2026-42580

creationtimestamp| type| source ---|---|--- 2026-05-05 18:09:16+00:00| published-proof-of-concept| https://github.com/netty/netty/security/advisories/GHSA-m4cv-j2px-7723...