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Advisory record · GHSA-xpp6-8r3j-ww43

Undertow Denial of Service vulnerability

CVSS 7.5 HighEPSS 0.029 · 87th percentile

Published by the GitHub Advisory Database at 8 Jul 2024, 21:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
io.undertow:undertow-coreMaven>=2.3.0.Alpha1, <2.3.15.Final || <2.2.34.Final2.3.15.Final, 2.2.34.Final
Identifiers
GHSA-xpp6-8r3j-ww43 · CVE-2024-5971
Weakness (CWE)
CWE-674
Tags
Published
8 Jul 2024
Updated
30 Sept 2024

Machine-written summary

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

Undertow (io.undertow:undertow-core) versions 2.3.0.Alpha1 up to 2.3.15.Final, and versions before 2.2.34.Final, are affected. In chunked responses, Undertow can omit the final chunk terminator after the body is flushed, so clients keep waiting and server resources are consumed, enabling denial of service; the source says this occurs only with Java 17 and TLSv1.3. Upgrade to 2.3.15.Final or 2.2.34.Final.

Written 8 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 CNA (redhat)
  • CISA KEV Not listed.
  • EPSS 0.029, the 87th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 8 Jul 2024, 20:51 UTC Confirmed by the CVE List
  2. 8 Jul 2024, 21:15 UTC Confirmed by NVD
  3. 31 Oct 2026, 15:13 UTC First seen by agentprime
  4. 31 Oct 2026, 15:13 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.