Security Advisory

CVE-2026-55833

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-07-20 23:18:07

Last updated 2026-07-21 13:03:47

Assigner GitHub_M

CVSS score 7.5

State PUBLISHED

Description

Netty is a network application framework for development of protocol servers and clients. Prior to 4.1.136.Final and 4.2.16.Final, Netty SPDY header decoding continues inflating zlib-compressed header blocks after the raw header parser has exceeded `maxHeaderSize` and marked the frame truncated in `SpdyFrameCodec`, allowing a remote peer to send a small compressed `HEADERS` block that expands into much larger raw header data and causes compression-amplified CPU and allocation churn. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.

← Browse all CVEs View on cve.org ↗