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Servers and applications

CVE-2025-52434

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…

Severity
High 7.5
Published
10 Jul 2025
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
9.0.107
Sources
NVD

Affected software

SoftwareAffected versions
Apache TomcatServers and applications · cpe:a:apache:tomcat
  • From 9.0.0 before 9.0.107

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-52434
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-52434