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 | — | Upgrade tomcat-jsp-2.3-apiUpgrade tomcat-admin-webappsUpgrade tomcat-webappsUpgrade tomcat-docs-webappUpgrade tomcat-el-3.0-apiUpgrade tomcat-servlet-4.0-apiUpgrade tomcatUpgrade tomcat-lib | Aug 22, 2025 | Aug 20, 2025 |
| Amazon Linux Ami 2 | — | Upgrade tomcat-admin-webappsUpgrade tomcat-servlet-4.0-apiUpgrade tomcat-jsp-2.3-apiUpgrade tomcat-webappsUpgrade tomcat-docs-webappUpgrade tomcatUpgrade tomcat-libUpgrade tomcat-jsvcUpgrade tomcat-el-3.0-api | May 20, 2026 | May 20, 2026 |
| Apache Tomcat | — | Upgrade Apache Tomcat to 9.0.107Upgrade Apache Tomcat to the latest available version | Jul 10, 2025 | Jul 10, 2025 |
| Atlassian Bitbucket | — | Upgrade Atlassian Bitbucket to the latest version | Aug 20, 2025 | Aug 19, 2025 |
| Atlassian Jira | — | Upgrade to the latest version of Atlassian JIRA | Jan 21, 2026 | Jan 20, 2026 |
| Debian | — | Upgrade tomcat9 | Jul 14, 2025 | Jul 10, 2025 |
| Freebsd | — | Upgrade tomcat101Upgrade tomcat110Upgrade tomcat9 | Jul 12, 2025 | Jul 10, 2025 |
| Oracle_linux | — | Upgrade tomcat9-jsp-2.3-apiUpgrade tomcat-admin-webappsUpgrade tomcat-jsp-2.3-apiUpgrade tomcat9-admin-webappsUpgrade tomcat9-servlet-4.0-apiUpgrade tomcat-libUpgrade tomcat9Upgrade tomcat9-libUpgrade tomcat9-docs-webappUpgrade tomcat9-webappsUpgrade tomcat-webappsUpgrade tomcatUpgrade tomcat-servlet-4.0-apiUpgrade tomcat-docs-webappUpgrade tomcat-el-3.0-apiUpgrade tomcat9-el-3.0-api | Aug 21, 2025 | Jul 10, 2025 |
| Redhat_linux | — | Upgrade tomcat-libUpgrade tomcat9-jsp-2.3-apiUpgrade tomcat9-admin-webappsUpgrade tomcat-jsp-2.3-apiUpgrade tomcat-admin-webappsUpgrade tomcat-servlet-4.0-apiUpgrade tomcat9Upgrade tomcat9-webappsUpgrade tomcat9-el-3.0-apiNo solution existsUpgrade tomcat-el-3.0-apiUpgrade tomcat9-servlet-4.0-apiUpgrade tomcat9-libUpgrade tomcat9-docs-webappUpgrade tomcatUpgrade tomcat-webappsUpgrade tomcat-docs-webapp | Jul 14, 2025 | Jul 10, 2025 |
| Suse | — | Upgrade tomcat-jsp-2_3-apiUpgrade tomcat-el-3_0-apiUpgrade tomcat-jsvcUpgrade tomcat-libUpgrade tomcat-docs-webappUpgrade tomcatUpgrade tomcat-servlet-4_0-apiUpgrade tomcat-admin-webappsUpgrade tomcat-webappsUpgrade tomcat-javadocUpgrade tomcat-embed | Dec 5, 2025 | Aug 27, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Aug 6, 2025 | Jul 10, 2025 |
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