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Advisory record · GHSA-8cfx-wx3q-mh5q

netty-incubator-codec-ohttp: Binary HTTP parser infinite loop on known-length field section boundary

CVSS 7.5 High

Published by the GitHub Advisory Database at 20 Aug 2026, 18:43 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
io.netty.incubator:netty-incubator-codec-bhttpMaven<0.0.23.Final0.0.23.Final
Identifiers
GHSA-8cfx-wx3q-mh5q · CVE-2026-63124
Weakness (CWE)
CWE-400 · CWE-835
Tags
Published
20 Aug 2026
Updated
20 Aug 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

netty-incubator-codec-bhttp before 0.0.23.Final loops forever when parsing a known-length Binary HTTP field section that ends exactly after a complete field line. A remote peer sending Binary HTTP input can use a small malformed message to tie up the parsing thread, causing denial of service. Upgrade to 0.0.23.Final.

Written 2 Nov 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
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS No score.

Timeline

  1. 31 Oct 2026, 14:19 UTC First seen by agentprime
  2. 31 Oct 2026, 14:19 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.