The fix for bug 63362 present in Apache Tomcat 10.1.0-M1 to 10.1.0-M5, 10.0.0-M1 to 10.0.11, 9.0.40 to 9.0.53 and 8.5.60 to 8.5.71 introduced a memory leak. The object introduced to collect metrics for HTTP upgrade connections was not released for WebSocket connections once the connection was closed. This created a memory leak that, over time, could lead to a denial of service via an OutOfMemoryError.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade tomcat-el-3.0-apiUpgrade tomcat-docs-webappUpgrade tomcat-javadocUpgrade tomcat-servlet-4.0-apiUpgrade tomcat-jsvcUpgrade tomcat-webappsUpgrade tomcatUpgrade tomcat-jsp-2.3-apiUpgrade tomcat-admin-webappsUpgrade tomcat-libUpgrade tomcat-servlet-3.1-api | Sep 28, 2023 | Oct 14, 2021 |
| Amazon_linux | — | Upgrade tomcat8 | Nov 5, 2021 | Oct 14, 2021 |
| Apache Tomcat | — | Upgrade Apache Tomcat to 10.0.11Upgrade Apache Tomcat to 9.0.54Upgrade Apache Tomcat to the latest available versionUpgrade Apache Tomcat to 8.5.72 | Oct 15, 2021 | Oct 14, 2021 |
| Debian | — | Upgrade tomcat9 | Nov 4, 2022 | Oct 14, 2021 |
| Gentoo Linux | — | Upgrade www-servers/tomcat. | Aug 22, 2022 | Oct 14, 2021 |
| Oracle Solaris | — | Upgrade web/java-servlet/tomcat-8 to version 8.5.72-11.4.40.0.1.107.1 on Solaris 11.4Upgrade web/java-servlet/tomcat-8/tomcat-admin to version 8.5.72-11.4.40.0.1.107.1 on Solaris 11.4Upgrade web/java-servlet/tomcat-8/tomcat-examples to version 8.5.72-11.4.40.0.1.107.1 on Solaris 11.4 | Dec 13, 2021 | Oct 14, 2021 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Oct 14, 2021 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Oct 14, 2021 |
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