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...

Astra Linux – Vulnerability in Tomcat9

When responding to new H2C connection requests, Apache Tomcat versions 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41, and 8.5.0 to 8.5.61 may duplicate request headers and a limited amount of request body from one request to another. This means that user A and user B may both see the results of user A’...

Astra Linux – Vulnerability in Tomcat9

If Apache Tomcat 8.5.0 to 8.5.82, 9.0.0-M1 to 9.0.67, 10.0.0-M1 to 10.0.26, or 10.1.0-M1 to 10.1.0 was configured to ignore invalid HTTP headers by setting rejectIllegalHeader to false the default for 8.5.x only, Tomcat would not reject requests containing an invalid Content-Length header. This...

Astra Linux – Vulnerability in Tomcat9

A vulnerability exists in the improper encoding or escaping of output in the JsonAccessLogValve component of Apache Tomcat. This issue affects Apache Tomcat versions from 11.0.0-M1 through 11.0.20, from 10.1.0-M1 through 10.1.53, and from 9.0.40 through 9.0.116. Users are recommended to upgrade t...

Astra Linux – Vulnerability in Tomcat9

The issue involves a vulnerability in the generation of error messages containing sensitive information in Apache Tomcat. This issue affects Apache Tomcat versions starting from 8.5.7 through 8.5.63, and from 9.0.0-M11 through 9.0.43. Other, end-of-life versions may also be affected. It is...

Astra Linux – Vulnerability in Tomcat9

There is an input validation vulnerability in Apache Tomcat. Versions of Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81, and from 8.5.0 through 8.5.93 did not properly parse HTTP trailer headers. A specially crafted, invalid trailer header...

Astra Linux – Vulnerability in Tomcat9

Inconsistent interpretation of HTTP requests „HTTP Request/Response Smuggling“ vulnerability in Apache Tomcat due to an invalid chunk extension. This issue affects Apache Tomcat: versions 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...

Astra Linux – Vulnerability in Tomcat9

CLIENTCERT authentication does not fail as expected in some scenarios when soft fail is disabled and FFM is used in Apache Tomcat. This issue affects Apache Tomcat versions from 11.0.0-M14 through 11.0.20, from 10.1.22 through 10.1.53, and from 9.0.92 through 9.0.116. Users are recommended to...

Astra Linux – Vulnerability in Tomcat9

Improper resource shutdown or release vulnerabilities in Apache Tomcat made Tomcat vulnerable to reset attacks. This issue affects Apache Tomcat versions from 11.0.0-M1 through 11.0.9, from 10.1.0-M1 through 10.1.43, and from 9.0.0.M1 through 9.0.107. Older, end-of-life versions may also be...

Astra Linux – Vulnerability in Tomcat9

The “Time-of-check Time-of-use” TOCTOU race condition vulnerability during JSP compilation in Apache Tomcat allows for a race condition on case-insensitive file systems when the default servlet is enabled for writing not in the default configuration. This issue affects Apache Tomcat versions from...

Astra Linux – Vulnerability in Tomcat9

The “Allocation of Resources Without Limits or Throttling” vulnerability in Apache Tomcat exists. This issue affects Apache Tomcat versions from 11.0.0-M1 through 11.0.0-M20, from 10.1.0-M1 through 10.1.24, and from 9.0.13 through 9.0.89. The following versions were already end-of-life at the tim...

Astra Linux – Vulnerability in Tomcat9

There is a vulnerability related to improper input validation in Apache Tomcat. In versions of Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82, and from 8.5.0 through 8.5.95, HTTP trailer headers were not parsed correctly. A trailer header th...

Astra Linux – Vulnerability in Tomcat9

Improper resource shutdown or release vulnerabilities in Apache Tomcat. If an error occurs including exceeding limits during the processing of a multipart upload, temporary copies of the uploaded parts that were written to disk are not deleted immediately but are left for the garbage collection...

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...

Apache Tomcat 9.0.0.M1 < 9.0.121 multiple vulnerabilities

The version of Tomcat installed on the remote host is prior to 9.0.121. It is, therefore, affected by multiple vulnerabilities as referenced in the fixedinapachetomcat9.0.121security-9 advisory. - Uncontrolled Resource Consumption vulnerability in Apache Tomcat's WebSocket chat example. This issu...

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...