Connect your agent
AdvisoriesCriticalCheck your lockfilePluginHow it worksPricing Connect your agent

Advisory record · GHSA-9ph3-v2vh-3qx7

Eclipse Vert.x vulnerable to a memory leak in TCP servers

CVSS 5.4 MediumEPSS 0.011 · 65th percentile

Published by the GitHub Advisory Database at 2 Apr 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>=4.3.4, <4.4.8 || >=4.5.0, <4.5.34.4.8, 4.5.3
Identifiers
GHSA-9ph3-v2vh-3qx7 · CVE-2024-1300
Weakness (CWE)
CWE-400 · CWE-772
Tags
Published
2 Apr 2024
Updated
28 Feb 2026

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 4.3.4 to before 4.4.8 and 4.5.0 to before 4.5.3 are vulnerable to a memory leak in TCP servers that use TLS with SNI. An attacker who can connect to such a server can send TLS client hello messages with made-up server names, which fill memory until the JVM runs out of memory. Upgrade to vertx-core 4.4.8 or 4.5.3.

Written 3 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
5.4 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L CNA (redhat)
  • CISA KEV Not listed.
  • EPSS 0.011, the 65th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 2 Apr 2024, 07:33 UTC Confirmed by the CVE List
  2. 2 Apr 2024, 08:15 UTC Confirmed by NVD
  3. 31 Oct 2026, 14:21 UTC First seen by agentprime
  4. 31 Oct 2026, 14:21 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.