Detections
Analytics
CVE-2026-42577
high
Description
Netty is an asynchronous, event-driven network application framework. From 4.2.0.Final to 4.2.13.Final , Netty's epoll transport fails to detect and close TCP connections that receive a RST after being half-closed, leading to stale channels that are never cleaned up and, in some code paths, a 100% CPU busy-loop in the event loop thread. This vulnerability is fixed in 4.2.13.Final.
References
https://github.com/netty/netty/security/advisories/GHSA-rwm7-x88c-3g2p
https://github.com/netty/netty/pull/16689
https://github.com/netty/netty/commit/0ec3d97fab376e243d328ac95fbd288ba0f6e22d