Tracker / CVE-2026-66299
CVE-2026-66299
High 7.5
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 application are not affected by this issue. Users are recommended to remove the examples web application or to upgrade to version 11.0.25, 10.1.58 or 9.0.121 (when released), which fix the issue.
Affected products and versions
| apache | tomcat |
|---|---|
| apache | tomcat · 10.1.24 → 10.1.58 |
| apache | tomcat · 11.0.1 → 11.0.25 |
| apache | tomcat · 9.0.89 → 9.0.121 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.