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.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | alma-upgrade-tomcatalma-upgrade-tomcat-admin-webappsalma-upgrade-tomcat-docs-webappalma-upgrade-tomcat-el-3.0-apialma-upgrade-tomcat-jsp-2.3-apialma-upgrade-tomcat-libalma-upgrade-tomcat-servlet-4.0-apialma-upgrade-tomcat-webapps | Jul 18, 2025 | Apr 28, 2025 | |
| Amazon Linux Ami 2 | amazon-linux-ami-2-upgrade-tomcatamazon-linux-ami-2-upgrade-tomcat-admin-webappsamazon-linux-ami-2-upgrade-tomcat-docs-webappamazon-linux-ami-2-upgrade-tomcat-el-3-0-apiamazon-linux-ami-2-upgrade-tomcat-jsp-2-3-apiamazon-linux-ami-2-upgrade-tomcat-jsvcamazon-linux-ami-2-upgrade-tomcat-libamazon-linux-ami-2-upgrade-tomcat-servlet-4-0-apiamazon-linux-ami-2-upgrade-tomcat-webapps | May 14, 2025 | Apr 28, 2025 | |
| Apache Tomcat | apache-tomcat-upgrade-9_0_104apache-tomcat-upgrade-10_1_40apache-tomcat-upgrade-11_0_6apache-tomcat-upgrade-latest | Apr 29, 2025 | Apr 28, 2025 | |
| Arch Linux | arch-linux-upgrade-latest | Jul 11, 2025 | Apr 28, 2025 | |
| Atlassian Bitbucket | atlassian-bitbucket-upgrade-latest | Jun 18, 2025 | Jun 17, 2025 | |
| Atlassian Jira | atlassian-jira-upgrade-latest | Jul 1, 2025 | Jun 17, 2025 | |
| Debian | debian-upgrade-tomcat10debian-upgrade-tomcat9 | Apr 30, 2025 | Apr 28, 2025 | |
| Oracle_linux | — | oracle-linux-upgrade-tomcatoracle-linux-upgrade-tomcat9oracle-linux-upgrade-tomcat9-admin-webappsoracle-linux-upgrade-tomcat9-docs-webapporacle-linux-upgrade-tomcat9-el-3-0-apioracle-linux-upgrade-tomcat9-jsp-2-3-apioracle-linux-upgrade-tomcat9-liboracle-linux-upgrade-tomcat9-servlet-4-0-apioracle-linux-upgrade-tomcat9-webappsoracle-linux-upgrade-tomcat-admin-webappsoracle-linux-upgrade-tomcat-docs-webapporacle-linux-upgrade-tomcat-el-3-0-apioracle-linux-upgrade-tomcat-jsp-2-3-apioracle-linux-upgrade-tomcat-liboracle-linux-upgrade-tomcat-servlet-4-0-apioracle-linux-upgrade-tomcat-webapps | Jul 18, 2025 | Apr 28, 2025 |
| Redhat_linux | no-fix-redhat-rpm-packageredhat-upgrade-tomcatredhat-upgrade-tomcat-admin-webappsredhat-upgrade-tomcat-docs-webappredhat-upgrade-tomcat-el-3-0-apiredhat-upgrade-tomcat-jsp-2-3-apiredhat-upgrade-tomcat-libredhat-upgrade-tomcat-servlet-4-0-apiredhat-upgrade-tomcat-webappsredhat-upgrade-tomcat9redhat-upgrade-tomcat9-admin-webappsredhat-upgrade-tomcat9-docs-webappredhat-upgrade-tomcat9-el-3-0-apiredhat-upgrade-tomcat9-jsp-2-3-apiredhat-upgrade-tomcat9-libredhat-upgrade-tomcat9-servlet-4-0-apiredhat-upgrade-tomcat9-webapps | Jul 9, 2025 | Apr 28, 2025 | |
| Suse | — | suse-upgrade-tomcatsuse-upgrade-tomcat-admin-webappssuse-upgrade-tomcat-docs-webappsuse-upgrade-tomcat-el-3_0-apisuse-upgrade-tomcat-embedsuse-upgrade-tomcat-javadocsuse-upgrade-tomcat-jsp-2_3-apisuse-upgrade-tomcat-jsvcsuse-upgrade-tomcat-libsuse-upgrade-tomcat-servlet-4_0-apisuse-upgrade-tomcat-webappssuse-upgrade-tomcat10suse-upgrade-tomcat10-admin-webappssuse-upgrade-tomcat10-docsuse-upgrade-tomcat10-docs-webappsuse-upgrade-tomcat10-el-5_0-apisuse-upgrade-tomcat10-embedsuse-upgrade-tomcat10-jsp-3_1-apisuse-upgrade-tomcat10-jsvcsuse-upgrade-tomcat10-libsuse-upgrade-tomcat10-servlet-6_0-apisuse-upgrade-tomcat10-webapps | Dec 5, 2025 | Jul 17, 2025 |
| Ubuntu | ubuntu-pro-upgrade-libtomcat10-javaubuntu-pro-upgrade-tomcat10ubuntu-upgrade-libtomcat10-javaubuntu-upgrade-tomcat10 | Jun 26, 2025 | Apr 28, 2025 | |
| Vmware Photon_os | vmware-photon_os_update_tdnf | Jul 2, 2025 | Apr 28, 2025 |
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