CVE-2025-52434

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

Vendor Apache Software Foundation
Product Apache Tomcat
Weakness CWE-362
Published July 10, 2025
Last update November 4, 2025

CVSS base score

What the vulnerability does

Description

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.

Key dates

Disclosure timeline

July 10, 2025 CVE published
November 4, 2025 Record updated