Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in Apache Tomcat when using the APR/Native connector. This was particularly noticeable with client initiated closes of HTTP/2 connections.
This issue affects Apache Tomcat: from 9.0.0.M1 through 9.0.106. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Other, older, EOL versions may also be affected.
Users are recommended to upgrade to version 9.0.107, which fixes 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 | Aug 22, 2025 | Aug 20, 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 20, 2026 | May 20, 2026 | |
| Apache Tomcat | apache-tomcat-upgrade-9_0_107apache-tomcat-upgrade-latest | Jul 10, 2025 | Jul 10, 2025 | |
| Atlassian Bitbucket | atlassian-bitbucket-upgrade-latest | Aug 20, 2025 | Aug 19, 2025 | |
| Atlassian Jira | atlassian-jira-upgrade-latest | Jan 21, 2026 | Jan 20, 2026 | |
| Debian | debian-upgrade-tomcat9 | Jul 14, 2025 | Jul 10, 2025 | |
| Freebsd | freebsd-upgrade-package-tomcat110freebsd-upgrade-package-tomcat101freebsd-upgrade-package-tomcat9 | Jul 12, 2025 | Jul 10, 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 | Aug 21, 2025 | Jul 10, 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 14, 2025 | Jul 10, 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-webapps | Dec 5, 2025 | Aug 27, 2025 |
| Vmware Photon_os | vmware-photon_os_update_tdnf | Aug 6, 2025 | Jul 10, 2025 |
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