Apache Tomcat Examples Web Application - Cross-Site Scripting

Apache Tomcat 8.5.50 to 8.5.81, 9.0.30 to 9.0.64, 10.0.0-M1 to 10.0.22, and 10.1.0-M1 to 10.1.0-M16 contain a reflected cross-site scripting caused by displaying unfiltered user data in the Form authentication example, letting attackers execute scripts in victim browsers, exploit requires attacke...

Security Bulletin: IBM Integration Bus for z/OS is vulnerable to Improper Handling of URL Encoding and Insufficient Technical Documentation due to Apache Tomcat (CVE-2026-59083 & CVE-2026-59084)

Summary IBM Integration Bus for z/OS is vulnerable to Improper Handling of URL Encoding and Insufficient Technical Documentation due to Apache Tomcat. Vulnerability Details CVEID:CVE-2026-59083 DESCRIPTION: Improper Handling of URL Encoding Hex Encoding vulnerability in Apache Tomcat's rewrite...

tomcat-coyote: Apache Tomcat: Information disclosure due to HTTP Authentication Header exposure during WebSocket authentication.

A flaw was found in Apache Tomcat. During WebSocket authentication, the HTTP Authentication Header can be exposed to unexpected hosts. This vulnerability leads to information disclosure, potentially allowing an attacker to gain access to sensitive authentication credentials...

K000162353: Apache Tomcat vulnerabilities CVE-2026-59083 and CVE-2026-59084

Security Advisory Description CVE-2026-59083 Improper Handling of URL Encoding Hex Encoding vulnerability in Apache Tomcat's rewrite valve allowed security constraint bypass for some configurations. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.23, from 10.1.0-M1 through 10.1.56,...

Medium: tomcat10

Issue Overview: Improper Neutralization of Script-Related HTML Tags in a Web Page Basic XSS vulnerability in the number guess example for Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0...

Apache Tomcat: Apache Tomcat: Missing Encryption of Sensitive Data due to EncryptInterceptor bypass

A flaw was found in Apache Tomcat. This vulnerability, categorized as Missing Encryption of Sensitive Data, arises from a bypass in the EncryptInterceptor, a component designed to ensure data encryption. This bypass, introduced as a fix for CVE-2026-29146, allows sensitive data to remain...

tomcat-coyote: Apache Tomcat: Information disclosure due to HTTP Authentication Header exposure during WebSocket authentication.

A flaw was found in Apache Tomcat. During WebSocket authentication, the HTTP Authentication Header can be exposed to unexpected hosts. This vulnerability leads to information disclosure, potentially allowing an attacker to gain access to sensitive authentication credentials...

Apache Tomcat: Apache Tomcat: Missing Encryption of Sensitive Data due to EncryptInterceptor bypass

A flaw was found in Apache Tomcat. This vulnerability, categorized as Missing Encryption of Sensitive Data, arises from a bypass in the EncryptInterceptor, a component designed to ensure data encryption. This bypass, introduced as a fix for CVE-2026-29146, allows sensitive data to remain...

Apache Tomcat: Apache Tomcat: Missing Encryption of Sensitive Data due to EncryptInterceptor bypass

A flaw was found in Apache Tomcat. This vulnerability, categorized as Missing Encryption of Sensitive Data, arises from a bypass in the EncryptInterceptor, a component designed to ensure data encryption. This bypass, introduced as a fix for CVE-2026-29146, allows sensitive data to remain...

Important: Red Hat Security Advisory: tomcat security update

An update for tomcat is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

Apache Tomcat: Apache Tomcat: Missing Encryption of Sensitive Data due to EncryptInterceptor bypass

A flaw was found in Apache Tomcat. This vulnerability, categorized as Missing Encryption of Sensitive Data, arises from a bypass in the EncryptInterceptor, a component designed to ensure data encryption. This bypass, introduced as a fix for CVE-2026-29146, allows sensitive data to remain...

tomcat: security constraint bypass with HTTP/0.9

A flaw was found in Tomcat. An improper input validation vulnerability allows an attacker to bypass security constraints. Specifically, if a security constraint is configured to permit HEAD requests to a URI but deny GET requests, a malformed or specification invalid HEAD request using the HTTP/0...

Apache Tomcat: Apache Tomcat: Open Redirect vulnerability via LoadBalancerDrainingValve

A flaw was found in Apache Tomcat. This open redirect vulnerability allows an attacker to redirect a user to an untrusted site. This occurs through the LoadBalancerDrainingValve, which can be exploited to manipulate URL redirection. The primary impact is that users may be unknowingly directed to...

PT-2026-57993

Name of the Vulnerable Software and Affected Versions Apache Tomcat versions 11.0.0-M1 through 11.0.23 Apache Tomcat versions 10.1.0-M1 through 10.1.56 Apache Tomcat versions 9.0.13 through 9.0.119 Apache Tomcat versions 8.5.38 through 8.5.100 Apache Tomcat versions 7.0.100 through 7.0.109...

Security Bulletin: Vulnerabilities in Apache Tomcat Server library (CVE-2026-41293, CVE-2026-24880) affect Power HMC.

Summary The Apache Tomcat Server library is used by Power Hardware Management Console HMC. HMC has addressed the applicable CVEs. Vulnerability Details CVEID:CVE-2026-41293 DESCRIPTION: Improper Input Validation vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1...

SUSE CVE-2026-50229

Improper Neutralization of Script-Related HTML Tags in a Web Page Basic XSS vulnerability in the number guess example for Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100, fro...

Linux Distros Unpatched Vulnerability : CVE-2026-55956

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Improper Authorization vulnerability in Apache Tomcat leads to security constraints specified for the default servlet ignoring any method or method omission...

Linux Distros Unpatched Vulnerability : CVE-2026-50229

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Improper Neutralization of Script-Related HTML Tags in a Web Page Basic XSS vulnerability in the number guess example for Apache Tomcat. This issue affects Apac...

Detection of Error Condition Without Action

Overview org.apache.tomcat:tomcat is an implementation of the Java Servlet, JavaServer Pages, Java Expression Language and Java WebSocket technologies. Affected versions of this package are vulnerable to Detection of Error Condition Without Action due to improper handling of invalid certificate...

CVE-2026-55276

Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat meant that special roles and empty authorisation constraints were not included when the effective web.xml was logged. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from...