|Type||Denial of service|
A security issue has been found in Apache Tomcat before versions 10.0.12, 9.0.54 and 8.5.72. The fix for bug 63362 introduced a memory leak. The object introduced to collect metrics for HTTP upgrade connections was not released for WebSocket connections once the WebSocket connection was closed. This created a memory leak that, over time, could lead to a denial of service via an OutOfMemoryError.