Improper Encoding or Escaping of Output vulnerability in the JsonAccessLogValve component of Apache Tomcat.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.20, from 10.1.0-M1 through 10.1.53, from 9.0.40 through 9.0.116.
Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117 , 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:H/I:N/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade tomcatUpgrade tomcat-docs-webappUpgrade tomcat-servlet-4.0-apiUpgrade tomcat-jsvcUpgrade tomcat-admin-webappsUpgrade tomcat-webappsUpgrade tomcat-jsp-2.3-apiUpgrade tomcat-el-3.0-apiUpgrade tomcat-lib | May 20, 2026 | May 20, 2026 |
| Apache Tomcat | — | Upgrade Apache Tomcat to the latest available versionUpgrade Apache Tomcat to 11.0.21Upgrade Apache Tomcat to 10.1.54Upgrade Apache Tomcat to 9.0.117 | Apr 10, 2026 | Apr 9, 2026 |
| Atlassian Jira | — | Upgrade to the latest version of Atlassian JIRA | May 20, 2026 | May 19, 2026 |
| Debian | — | Upgrade tomcat10Upgrade tomcat11Upgrade tomcat9 | Apr 13, 2026 | Apr 13, 2026 |
| Redhat_linux | — | Upgrade jws6-tomcat-docs-webappUpgrade tomcat-servlet-4.0-apiUpgrade tomcat9-admin-webappsUpgrade jws6-tomcat-javadocUpgrade jws6-tomcat-admin-webappsUpgrade tomcat9-libUpgrade tomcat9-jsp-2.3-apiUpgrade jws6-tomcatUpgrade jws6-tomcat-servlet-6.0-apiUpgrade tomcat9-servlet-4.0-apiUpgrade tomcat9Upgrade jws6-tomcat-el-5.0-apiUpgrade jws6-tomcat-selinuxUpgrade tomcat9-el-3.0-apiUpgrade tomcat9-docs-webappUpgrade jws6-tomcat-libUpgrade tomcat-webappsUpgrade tomcatUpgrade tomcat-jsp-2.3-apiUpgrade tomcat-el-3.0-apiUpgrade tomcat-admin-webappsUpgrade tomcat9-webappsUpgrade jws6-tomcat-webappsUpgrade jws6-tomcat-jsp-3.1-apiNo solution existsUpgrade tomcat-docs-webappUpgrade tomcat-lib | May 28, 2026 | Apr 9, 2026 |
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