Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache Tomcat via invalid chunk extension.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M1 through 10.1.52, from 9.0.0.M1 through 9.0.115, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other, unsupported versions may also be affected.
Users are recommended to upgrade to version 11.0.20, 10.1.52 or 9.0.116, 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:H/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade tomcat-docs-webappUpgrade tomcat-servlet-4.0-apiUpgrade tomcat-el-3.0-apiUpgrade tomcat-libUpgrade tomcat-admin-webappsUpgrade tomcatUpgrade tomcat-webappsUpgrade tomcat-jsp-2.3-api | Oct 11, 2026 | Sep 17, 2026 |
| Amazon Linux Ami 2 | — | Upgrade tomcat-servlet-4.0-apiUpgrade tomcat-libUpgrade tomcat-jsvcUpgrade tomcatUpgrade tomcat-el-3.0-apiUpgrade tomcat-webappsUpgrade tomcat-jsp-2.3-apiUpgrade tomcat-docs-webappUpgrade tomcat-admin-webapps | May 20, 2026 | May 20, 2026 |
| Apache Tomcat | — | Upgrade Apache Tomcat to 9.0.116Upgrade Apache Tomcat to the latest available versionUpgrade Apache Tomcat to 11.0.20Upgrade Apache Tomcat to 10.1.53 | Apr 10, 2026 | Apr 9, 2026 |
| Debian | — | Upgrade tomcat10Upgrade tomcat11Upgrade tomcat9 | Apr 13, 2026 | Apr 13, 2026 |
| Redhat_linux | — | Upgrade tomcatUpgrade tomcat9-admin-webappsUpgrade tomcat-jsp-2.3-apiUpgrade tomcat9-docs-webappUpgrade jws6-tomcat-docs-webappUpgrade jws6-tomcatUpgrade jws6-tomcat-libUpgrade tomcat9-el-3.0-apiUpgrade jws6-tomcat-webappsUpgrade tomcat-servlet-4.0-apiUpgrade tomcat-docs-webappUpgrade tomcat-el-3.0-apiUpgrade tomcat-admin-webappsUpgrade tomcat9-jsp-2.3-apiNo solution existsUpgrade jws6-tomcat-jsp-3.1-apiUpgrade tomcat-libUpgrade tomcat9-webappsUpgrade jws6-tomcat-selinuxUpgrade tomcat9-libUpgrade tomcat9-servlet-4.0-apiUpgrade jws6-tomcat-el-5.0-apiUpgrade tomcat-webappsUpgrade jws6-tomcat-javadocUpgrade jws6-tomcat-admin-webappsUpgrade tomcat9Upgrade jws6-tomcat-servlet-6.0-api | May 28, 2026 | Apr 9, 2026 |
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