Atlassian Jira Service Management Data Center and Server 5.12.0 < 5.12.26 / 5.13.x < 10.3.16 (JSDSERVER-16499)

The version of Atlassian Jira Service Management Data Center and Server Jira Service Desk running on the remote host is affected by a vulnerability as referenced in the JSDSERVER-16499 advisory. - Concurrent Execution using Shared Resource with Improper Synchronization 'Race Condition'...

Unity Linux 20.1060a / 20.1070a Security Update: tomcat (UTSA-2025-986134)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-986134 advisory. Concurrent Execution using Shared Resource with Improper Synchronization 'Race Condition' vulnerability in Apache Tomcat when using the APR/Native connector. This wa...

MGASA-2025-0223 Updated tomcat packages fix vulnerabilities

APR/Native Connector crash leading to DoS. CVE-2025-52434 DoS via integer overflow in multipart file upload. CVE-2025-52520 DoS via excessive h2 streams at connection start. CVE-2025-53506 H2 DoS - Made You Reset. CVE-2025-48989...

tomcat: Apache Tomcat denial of service

A denial of service flaw was found in Apache Tomcat. A race condition during connection closure could trigger a JVM crash when using the APR/Native connector, leading to a denial of service. This issue was particularly noticeable with client-initiated closures of HTTP/2 connections...

Important: tomcat

Issue Overview: 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...

tomcat: Apache Tomcat denial of service

A denial of service flaw was found in Apache Tomcat. A race condition during connection closure could trigger a JVM crash when using the APR/Native connector, leading to a denial of service. This issue was particularly noticeable with client-initiated closures of HTTP/2 connections...

OESA-2025-1896 tomcat security update

Tomcat is the servlet container that is used in the official Reference Implementation for the Java Servlet and JavaServer Pages technologies. The Java Servlet and JavaServer Pages specifications are developed by Sun under the Java Community Process. Security Fixes: Concurrent Execution using Shar...

GHSA-4J3C-42XV-3F84 Apache Tomcat is vulnerable to resource exhaustion when using the APR/Native connector

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 throug...

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 throug...

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

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 throug...

CVE-2025-52434: Concurrent Execution using Shared Resource with Improper Synchronization

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 throug...

Fixed in Apache Tomcat 9.0.107

Important: APR/Native Connector crash leading to DoS CVE-2025-52434 A race condition on connection close could trigger a JVM crash when using the APR/Native connector leading to a DoS. This was particularly noticeable with client initiated closes of HTTP/2 connections. This was fixed with commit...

Race Condition

Overview org.apache.tomcat.embed:tomcat-embed-core is a Core Tomcat implementation. Affected versions of this package are vulnerable to Race Condition on connection close when using the APR/Native connector. An attacker could trigger a JVM crash by rapidly opening and closing HTTP/2 connections...