Apache Tomcat Multiple Vulnerabilities

Release Date: 2 Jul 2026

RISK: Medium Risk

TYPE: Servers - Web Servers

Multiple vulnerabilities were identified in Apache Tomcat. A remote attacker could exploit some of these vulnerabilities to trigger cross-site scripting, elevation of privilege and security restriction bypass on the targeted system.

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Impact

• Elevation of Privilege
• Security Restriction Bypass
• Cross-Site Scripting

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System / Technologies affected

• Apache Tomcat version 9.0.0.M1 to 9.0.118
• Apache Tomcat version 10.1.0-M1 to 10.1.55
• Apache Tomcat version 11.0.0-M1 to 11.0.22

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Solutions

Before installation of the software, please visit the vendor web-site for more details.

 

Apply fixes issued by the vendor:

• https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.119
• https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.56
• https://tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.23

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Vulnerability Identifier

• CVE-2026-50229
• CVE-2026-53404
• CVE-2026-53434
• CVE-2026-55276
• CVE-2026-55955
• CVE-2026-55956
• CVE-2026-55957

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Source

• Apache Tomcat

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Related Link

• https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.119
• https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.56
• https://tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.23