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.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| org.apache.tomcat:tomcat-websocket(Maven) | 11.0.0-M1 | 11.0.0-M17 | N/A |
| org.apache.tomcat:tomcat-websocket(Maven) | 10.1.0-M1 | 10.1.19 | N/A |
| org.apache.tomcat:tomcat-websocket(Maven) | 9.0.0-M1 | 9.0.86 | N/A |
| org.apache.tomcat:tomcat-websocket(Maven) | 8.5.0 | 8.5.99 | N/A |
| org.apache.tomcat.embed:tomcat-embed-websocket(Maven) | 11.0.0-M1 | 11.0.0-M17 | N/A |
| org.apache.tomcat.embed:tomcat-embed-websocket(Maven) | 10.1.0-M1 | 10.1.19 | N/A |
| org.apache.tomcat.embed:tomcat-embed-websocket(Maven) | 9.0.0-M1 | 9.0.86 | N/A |
| org.apache.tomcat.embed:tomcat-embed-websocket(Maven) | 8.5.0 | 8.5.99 | N/A |
CVSS Metrics
