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Advisory record · GHSA-5667-3wch-7q7w

Eclipse Vert.x memory leak

CVSS 6.5 MediumEPSS 0.017 · 76th percentile

Published by the GitHub Advisory Database at 27 Mar 2024, 09:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
io.vertx:vertx-coreMaven>=4.5.0, <4.5.2 || >=4.4.5, <4.4.74.5.2, 4.4.7
Identifiers
GHSA-5667-3wch-7q7w · CVE-2024-1023
Weakness (CWE)
CWE-119 · CWE-200 · CWE-401
Tags
Published
27 Mar 2024
Updated
25 Jul 2024

Machine-written summary

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

Eclipse Vert.x (io.vertx:vertx-core) versions 4.5.0 to before 4.5.2 and 4.4.5 to before 4.4.7 contain a memory leak in the HTTP client, caused by how it uses Netty FastThreadLocal data structures when connecting to different hosts. An attacker who can make a server built on the affected HTTP client connect to arbitrary addresses, such as by accepting attacker-supplied internet addresses, can accelerate the leak and exhaust memory. Upgrade to vertx-core 4.5.2 or 4.4.7.

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
6.5 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CNA (redhat)
  • CISA KEV Not listed.
  • EPSS 0.017, the 76th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 27 Mar 2024, 07:51 UTC Confirmed by the CVE List
  2. 27 Mar 2024, 08:15 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.