Advisory record · GHSA-ch7q-gpff-h9hp

Undertow Missing Release of Memory after Effective Lifetime vulnerability

CVSS 5.3 MediumEPSS 0.019 · 79th percentile

Published by the GitHub Advisory Database at 9 Jul 2024, 00:31 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-ch7q-gpff-h9hp · CVE-2024-3653
Weakness (CWE)
CWE-401
Published
9 Jul 2024
Updated
4 Nov 2024

Machine-written summary

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

Undertow (io.undertow:undertow-core) versions from 2.3.0.Alpha1 before 2.3.15.Final and before 2.2.34.Final are affected. The issue is a missing release of memory after its useful lifetime, and it only applies when the learning-push handler is enabled with maxAge left at its default of -1. An attacker who can send normal HTTP requests to such a server could trigger it. Upgrade to 2.3.15.Final or 2.2.34.Final; if you cannot upgrade, setting maxAge explicitly on the learning-push handler removes the exposure.

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
5.3 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CNA (redhat)
  • CISA KEV Not listed.
  • EPSS 0.019, the 79th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 8 Jul 2024, 21:21 UTC Confirmed by the CVE List
  2. 8 Jul 2024, 22:15 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.