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Advisory record · GHSA-9623-mj7j-p9v4

Quarkus potentially leaks data when duplicating a duplicated context

CVSS 6.4 MediumEPSS 0.0028 · 21st percentile

Published by the GitHub Advisory Database at 23 Jun 2025, 18:53 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
io.quarkus:quarkus-vertxMaven<3.15.6 || >=3.16.0.CR1, <3.20.2 || >=3.21.0.CR1, <3.24.13.15.6, 3.20.2, 3.24.1
Identifiers
GHSA-9623-mj7j-p9v4 · CVE-2025-49574
Weakness (CWE)
CWE-668
Tags
Published
23 Jun 2025
Updated
10 Sept 2026

Machine-written summary

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

Quarkus versions covered by io.quarkus:quarkus-vertx before 3.15.6, from 3.16.0.CR1 up to but not including 3.20.2, and from 3.21.0.CR1 up to but not including 3.24.1 can leak data between transactions. Duplicating a duplicated Vert.x context copies the parent's data into the new context, so data from one transaction may become visible to another. Upgrade to 3.15.6, 3.20.2, or 3.24.1 depending on your release line. The source describes a code workaround, but it is not reproduced here.

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
6.4 Medium 3.1 CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0028, the 21st percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 23 Jun 2025, 06:34 UTC Published by the maintainers as a GitHub repository advisory
  2. 31 Oct 2026, 14:17 UTC First seen by agentprime
  3. 31 Oct 2026, 14:17 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.