| Package | Affected versions | Patched versions |
|---|---|---|
| org.apache.tomcat.embed:tomcat-embed-websocket | ≥ 10.1.0-M1, < 10.1.19≥ 11.0.0-M1, < 11.0.0-M17≥ 8.5.0, < 8.5.99≥ 9.0.0-M1, < 9.0.86 | 10.1.1911.0.0-M178.5.999.0.86 |
| org.apache.tomcat:tomcat-websocket | ≥ 10.1.0-M1, < 10.1.19≥ 11.0.0-M1, < 11.0.0-M17≥ 8.5.0, < 8.5.99≥ 9.0.0-M1, < 9.0.86 | 10.1.1911.0.0-M178.5.999.0.86 |
| tomcat | = 11.0.0≥ 10.1.0, < 10.1.19≥ 8.5.0, < 8.5.99≥ 9.0.0, < 9.0.86 | 10.1.198.5.999.0.86 |
Denial of Service via incomplete cleanup vulnerability in Apache Tomcat. It was possible for WebSocket clients to keep WebSocket connections open leading to increased resource consumption.This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.0-M16, from 10.1.0-M1 through 10.1.18, from 9.0.0-M1 through 9.0.85, from 8.5.0 through 8.5.98. Older, EOL versions may also be affected.
Users are recommended to upgrade to version 11.0.0-M17, 10.1.19, 9.0.86 or 8.5.99 which fix the issue.
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