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Advisory record · GHSA-wx5j-54mm-rqqq

HTTP request smuggling in netty

CVSS 6.5 MediumEPSS 0.029 · 86th percentile

Published by the GitHub Advisory Database at 9 Dec 2021, 19:09 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
io.netty:netty-codec-httpMaven>=4.0.0, <4.1.71.Final4.1.71.Final
org.jboss.netty:nettyMavenall versionsNo fixed version yet
io.netty:nettyMavenall versionsNo fixed version yet
Identifiers
GHSA-wx5j-54mm-rqqq · CVE-2021-43797
Weakness (CWE)
CWE-444
Tags
Published
9 Dec 2021
Updated
10 Sept 2026

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.5 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.029, the 86th percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:18 UTC First seen by agentprime
  2. 31 Oct 2026, 14:18 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.