Intel

AIKIDO-2026-556582

reactor-netty-http is vulnerable to Denial of Service (DoS)

Denial of Service (DoS)CVE-2026-47874 Published Aug 21, 2026

53

Medium Risk

This Affects:

JAVAreactor-netty-http
0.0.1 - 1.3.6
Fixed in 1.3.7
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TL;DR

reactor-netty-http consumes excessive memory when a client sends HTTP/1.1 pipelined requests on a single connection. A remote sender can degrade or exhaust the server by pipelining many requests. Availability of other connections is then reduced. The patch bounds memory used while handling pipelined requests.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range and the Reactor Netty HTTP server accepts HTTP/1.1 pipelined requests.

Background info

reactor-netty-http is vulnerable to Denial of Service (DoS) in versions 0.0.1 - 1.3.6.

How to fix this

Upgrade the io.projectreactor.netty:reactor-netty-http library to the patch version.