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AIKIDO-2026-734857

spring-messaging is vulnerable to Denial of Service (DoS)

Denial of Service (DoS)CVE-2026-47888 Published Aug 21, 2026

43

Medium Risk

This Affects:

JAVAspring-messaging
5.2.0 - 7.0.8
Fixed in 7.0.9
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TL;DR

spring-messaging RSocketMessageHandler leaks memory when processing a malformed SETUP frame. A connected peer can repeat such frames and grow retained objects without bound. That degrades or exhausts the RSocket server. The patch releases SETUP-frame state on invalid input.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range and the application handles RSocket SETUP frames through RSocketMessageHandler.

Background info

spring-messaging is vulnerable to Denial of Service (DoS) in versions 5.2.0 - 7.0.8.

How to fix this

Upgrade the org.springframework:spring-messaging library to the patch version.

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