Race Condition Affecting tomcat-8.5.87 package, versions <8.5.87-r6


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
2.07% (81st percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-TOMCAT8587-17803159
  • published3 Jul 2026
  • disclosed10 Jul 2025

Introduced: 10 Jul 2025

CVE-2025-52434  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade Chainguard tomcat-8.5.87 to version 8.5.87-r6 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tomcat-8.5.87 package and not the tomcat-8.5.87 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in Apache Tomcat when using the APR/Native connector. This was particularly noticeable with client initiated closes of HTTP/2 connections.

This issue affects Apache Tomcat: from 9.0.0.M1 through 9.0.106. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Other, older, EOL versions may also be affected.

Users are recommended to upgrade to version 9.0.107, which fixes the issue.

CVSS Base Scores

version 3.1