OESA-2026-3233 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: Uncontrolled Resource Consumpti...

K000162737: Apache Tomcat vulnerability CVE-2026-66299

Security Advisory Description Uncontrolled Resource Consumption vulnerability in Apache Tomcat's WebSocket chat example. This issue affects Apache Tomcat: from 11.0.0-M20 through 11.0.24, from 10.1.24 through 10.1.57, from 9.0.89 through 9.0.120. Users who have followed the security guidance to...

CVE-2026-66299

A flaw was found in Apache Tomcat. This uncontrolled resource consumption vulnerability, located in the WebSocket chat example, allows a remote attacker to cause a Denial of Service DoS by exhausting system resources. This can lead to the affected system becoming unresponsive or crashing...

CVE-2026-66299 Apache Tomcat: DoS via WebSocket chat example

Uncontrolled Resource Consumption vulnerability in Apache Tomcat's WebSocket chat example. This issue affects Apache Tomcat: from 11.0.0-M20 through 11.0.24, from 10.1.24 through 10.1.57, from 9.0.89 through 9.0.120. Users who have followed the security guidance to remove the examples web...

CVE-2026-66299

Summary: CVE-2026-66299 describes an Uncontrolled Resource Consumption (DoS) in Apache Tomcat’s WebSocket chat example. The vulnerability affects Tomcat versions 11.0.0-M20 through 11.0.24, 10.1.24 through 10.1.57, and 9.0.89 through 9.0.120. The root cause is an unbounded buffer for undelivered ...

CVE-2026-66299

Uncontrolled Resource Consumption vulnerability in Apache Tomcat's WebSocket chat example. This issue affects Apache Tomcat: from 11.0.0-M20 through 11.0.24, from 10.1.24 through 10.1.57, from 9.0.89 through 9.0.120. Users who have followed the security guidance to remove the examples web...

CVE-2026-66299

Uncontrolled Resource Consumption vulnerability in Apache Tomcat's WebSocket chat example. This issue affects Apache Tomcat: from 11.0.0-M20 through 11.0.24, from 10.1.24 through 10.1.57, from 9.0.89 through 9.0.120. Users who have followed the security guidance to remove the examples web...