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Improper Input Validation vulnerability in Apache Tomcat. Incorrect error handling for some invalid HTTP priority headers resulted in incomplete clean-up of the failed request which created a memory leak. A large number of such requests could trigger an OutOfMemoryException resulting in a denial of service.
This issue affects Apache Tomcat: from 9.0.76 through 9.0.102, from 10.1.10 through 10.1.39, from 11.0.0-M2 through 11.0.5. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.90 though 8.5.100.
Users are recommended to upgrade to version 9.0.104, 10.1.40 or 11.0.6 which fix the issue.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade tomcatUpgrade tomcat-webappsUpgrade tomcat-docs-webappUpgrade tomcat-servlet-4.0-apiUpgrade tomcat-el-3.0-apiUpgrade tomcat-admin-webappsUpgrade tomcat-jsp-2.3-apiUpgrade tomcat-lib | Jul 18, 2025 | Apr 28, 2025 |
| Amazon Linux Ami 2 | — | Upgrade tomcat-webappsUpgrade tomcat-libUpgrade tomcat-el-3.0-apiUpgrade tomcat-docs-webappUpgrade tomcat-admin-webappsUpgrade tomcatUpgrade tomcat-servlet-4.0-apiUpgrade tomcat-jsvcUpgrade tomcat-jsp-2.3-api | May 14, 2025 | Apr 28, 2025 |
| Apache Tomcat | — | Upgrade Apache Tomcat to 11.0.6Upgrade Apache Tomcat to 10.1.40Upgrade Apache Tomcat to the latest available versionUpgrade Apache Tomcat to 9.0.104 | Apr 29, 2025 | Apr 28, 2025 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Apr 28, 2025 |
| Atlassian Bitbucket | — | Upgrade Atlassian Bitbucket to the latest version | Jun 18, 2025 | Jun 17, 2025 |
| Atlassian Jira | — | Upgrade to the latest version of Atlassian JIRA | Jul 1, 2025 | Jun 17, 2025 |
| Debian | — | Upgrade tomcat9Upgrade tomcat11Upgrade tomcat10 | Apr 30, 2025 | Apr 28, 2025 |
| Oracle_linux | — | Upgrade tomcat9Upgrade tomcat9-admin-webappsUpgrade tomcat-libUpgrade tomcat9-jsp-2.3-apiUpgrade tomcat9-el-3.0-apiUpgrade tomcat-servlet-4.0-apiUpgrade tomcat9-libUpgrade tomcat9-webappsUpgrade tomcatUpgrade tomcat-webappsUpgrade tomcat-admin-webappsUpgrade tomcat-el-3.0-apiUpgrade tomcat9-docs-webappUpgrade tomcat-jsp-2.3-apiUpgrade tomcat-docs-webappUpgrade tomcat9-servlet-4.0-api | Jul 18, 2025 | Apr 28, 2025 |
| Redhat_linux | — | Upgrade tomcat9-servlet-4.0-apiUpgrade tomcat-admin-webappsUpgrade tomcat9-libUpgrade tomcat-jsp-2.3-apiNo solution existsUpgrade tomcat-webappsUpgrade tomcat9-admin-webappsUpgrade tomcat9-webappsUpgrade tomcat-libUpgrade tomcat9-jsp-2.3-apiUpgrade tomcat-el-3.0-apiUpgrade tomcat9-docs-webappUpgrade tomcatUpgrade tomcat9Upgrade tomcat9-el-3.0-apiUpgrade tomcat-servlet-4.0-apiUpgrade tomcat-docs-webapp | Jul 9, 2025 | Apr 28, 2025 |
| Suse | — | Upgrade tomcat10-webappsUpgrade tomcat-el-3_0-apiUpgrade tomcat10-libUpgrade tomcat10-servlet-6_0-apiUpgrade tomcat-admin-webappsUpgrade tomcat10-embedUpgrade tomcat-servlet-4_0-apiUpgrade tomcat-embedUpgrade tomcat-libUpgrade tomcat-webappsUpgrade tomcat10-el-5_0-apiUpgrade tomcat-docs-webappUpgrade tomcat10-jsvcUpgrade tomcat-jsvcUpgrade tomcat-javadocUpgrade tomcat10-jsp-3_1-apiUpgrade tomcatUpgrade tomcat10-docs-webappUpgrade tomcat-jsp-2_3-apiUpgrade tomcat10-docUpgrade tomcat10-admin-webappsUpgrade tomcat10 | Dec 5, 2025 | Jul 17, 2025 |
| Ubuntu | — | Upgrade tomcat10Upgrade libtomcat10-javaUpgrade libtomcat10-java (Ubuntu Pro)Upgrade tomcat10 (Ubuntu Pro) | Jun 26, 2025 | Apr 28, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jul 2, 2025 | Apr 28, 2025 |
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