CVE-2025-52434 — Apache Tomcat: APR/Native Connector crash leading to DoS

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Apache Software Foundation / Apache Tomcat	affected 9.0.0.M1 through 9.0.106; affected 8.5.0 through 8.5.100; unknown 5 before 8.5.0; unknown 10.0.0-M1 through 10.0.27

CWE

CWE-362

References

https://lists.apache.org/thread/gxgh65004f25y8519coth6w7vchww030

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.

https://lists.debian.org/debian-lts-announce/2025/07/msg00009.html
http://www.openwall.com/lists/oss-security/2025/07/10/11