{"id":86615,"date":"2026-03-05T18:38:51","date_gmt":"2026-03-05T18:38:51","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T00:00:00","slug":"cve-2025-52434-race-condition-vulnerability-in-apache-tomcat","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-52434-race-condition-vulnerability-in-apache-tomcat\/","title":{"rendered":"CVE-2025-52434: Race Condition Vulnerability in Apache Tomcat<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

This report examines the critical vulnerability, CVE-2025-52434, found in Apache Tomcat. It notably affects versions from 9.0.0.M1 through 9.0.106. This vulnerability exploits a race condition that can potentially lead to system compromise or data leakage. Understanding the issue is crucial for system administrators and developers who use Apache Tomcat as it can significantly impact the system’s overall security.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-52434
\nSeverity: High (7.5 CVSS)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: System compromise or data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

Apache Tomcat | 9.0.0.M1 to 9.0.106<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The exploit takes advantage of a race condition in Apache Tomcat when using the APR\/Native connector. This issue is particularly noticeable with client-initiated closes of HTTP\/2 connections. An attacker can send specially crafted requests to create a race condition, potentially leading to unauthorized system access or data exposure.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

Here is a conceptual example of how an attacker might exploit this vulnerability:<\/p>\n

POST \/vulnerable\/endpoint HTTP\/2.0\nHost: target.example.com\nContent-Type: application\/json\n{ \"malicious_payload\": \"Exploit race condition in HTTP\/2 connection\" }<\/code><\/pre>\n
Mitigation Guidance<\/strong><\/p>\n
The recommended mitigation for this vulnerability is to upgrade to Apache Tomcat version 9.0.107, which contains a fix for this issue. As a temporary mitigation, you can apply a vendor patch, or use an intrusion detection system (IDS) or a web application firewall (WAF). However, these are temporary solutions and the system should be updated as soon as possible.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview This report examines the critical vulnerability, CVE-2025-52434, found in Apache Tomcat. It notably affects versions from 9.0.0.M1 through 9.0.106. This vulnerability exploits a race condition that can potentially lead to system compromise or data leakage. Understanding the issue is crucial for system administrators and developers who use Apache Tomcat as it can significantly impact […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-86615","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t