UBUNTU-CVE-2026-34483

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 o...

CVE-2026-34483

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 o...

CVE-2026-34483

CVE-2026-34483 is an Improper Encoding or Escaping of Output vulnerability in the JsonAccessLogValve component of Apache Tomcat. Affected versions: Tomcat 11.0.0-M1 through 11.0.20, 10.1.0-M1 through 10.1.53, and 9.0.40 through 9.0.116. Exploitation concerns are not detailed in the provided docum...

CVE-2026-34483 Apache Tomcat: Incomplete escaping of JSON access logs

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 o...

CVE-2026-25854 Apache Tomcat: Occasionally open redirect

Occasional URL redirection to untrusted Site 'Open Redirect' vulnerability in Apache Tomcat via the LoadBalancerDrainingValve. 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.M23 through 9.0.115, from 8.5.30 through 8.5.100. Other,...

CVE-2026-25854 Apache Tomcat: Occasionally open redirect

Occasional URL redirection to untrusted Site 'Open Redirect' vulnerability in Apache Tomcat via the LoadBalancerDrainingValve. 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.M23 through 9.0.115, from 8.5.30 through 8.5.100. Other,...

CVE-2026-25854

CVE-2026-25854 is an Open Redirect vulnerability in Apache Tomcat caused by the LoadBalancerDrainingValve. Affected versions include Tomcat 11.0.0-M1 through 11.0.18, 10.1.0-M1 through 10.1.52, 9.0.0.M23 through 9.0.115, and 8.5.30 through 8.5.100. The issue allows occasional redirection to untru...

CVE-2026-25854

Occasional URL redirection to untrusted Site 'Open Redirect' vulnerability in Apache Tomcat via the LoadBalancerDrainingValve. 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.M23 through 9.0.115, from 8.5.30 through 8.5.100. Other,...

CVE-2026-25854

Occasional URL redirection to untrusted Site 'Open Redirect' vulnerability in Apache Tomcat via the LoadBalancerDrainingValve. 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.M23 through 9.0.115, from 8.5.30 through 8.5.100. Other,...

CVE-2026-25854 Apache Tomcat: Occasionally open redirect

Occasional URL redirection to untrusted Site 'Open Redirect' vulnerability in Apache Tomcat via the LoadBalancerDrainingValve. 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.M23 through 9.0.115, from 8.5.30 through 8.5.100. Other,...

Improper Encoding or Escaping of Output

Overview org.apache.tomcat.embed:tomcat-embed-core is a Core Tomcat implementation. Affected versions of this package are vulnerable to Improper Encoding or Escaping of Output in JsonAccessLogValve, which relies on an unescaped append in generating JSON logs. If non-default values are used for th...

Open Redirect

Overview org.apache.tomcat.embed:tomcat-embed-core is a Core Tomcat implementation. Affected versions of this package are vulnerable to Open Redirect via the LoadBalancerDrainingValve.invoke function. When the LoadBalancerDrainingValve is in the disabled draining state, an attacker can redirect...

Open Redirect

Overview org.apache.tomcat:tomcat-catalina is a Tomcat Servlet Engine Core Classes and Standard implementations. Affected versions of this package are vulnerable to Open Redirect via the LoadBalancerDrainingValve.invoke function. When the LoadBalancerDrainingValve is in the disabled draining stat...

org.apache.tomcat/tomcat-catalina: tomcat: Apache Tomcat: session fixation via rewrite valve

A session fixation vulnerability has been identified in Apache Tomcat, affecting its rewrite functionality. If the rewrite valve is enabled for a web application, an attacker can craft a specific URL. If a victim clicks on this malicious URL, their subsequent interaction with the resource will...

PT-2026-31697

Name of the Vulnerable Software and Affected Versions Apache Tomcat versions 11.0.0-M1 through 11.0.18, 10.1.0-M1 through 10.1.52, 9.0.0.M23 through 9.0.115, and 8.5.30 through 8.5.100. Description An open redirect issue exists in Apache Tomcat due to a flaw in the LoadBalancerDrainingValve. This...

SUSE-SU-2026:0877-1 Security update for tomcat11

This update for tomcat11 fixes the following issues: Update to Tomcat 11.0.18: - CVE-2025-66614: client certificate verification bypass due to virtual host mapping bsc1258371. - CVE-2026-24733: improper input validation on HTTP/0.9 requests bsc1258385. - CVE-2026-24734: certificate revocation...

org.apache.tomcat/tomcat-catalina: tomcat: Apache Tomcat: session fixation via rewrite valve

A session fixation vulnerability has been identified in Apache Tomcat, affecting its rewrite functionality. If the rewrite valve is enabled for a web application, an attacker can craft a specific URL. If a victim clicks on this malicious URL, their subsequent interaction with the resource will...

org.apache.tomcat/tomcat-catalina: tomcat: Apache Tomcat: session fixation via rewrite valve

A session fixation vulnerability has been identified in Apache Tomcat, affecting its rewrite functionality. If the rewrite valve is enabled for a web application, an attacker can craft a specific URL. If a victim clicks on this malicious URL, their subsequent interaction with the resource will...

tomcat: Apache Tomcat: Bypass of rules in Rewrite Valve

A flaw was found in Apache Tomcat's rewrite rule processing component. This vulnerability allows security constraints to be bypassed via specially crafted HTTP requests when specific, uncommon rewrite rule configurations are in use...

tomcat: Apache Tomcat: Bypass of rules in Rewrite Valve

A flaw was found in Apache Tomcat's rewrite rule processing component. This vulnerability allows security constraints to be bypassed via specially crafted HTTP requests when specific, uncommon rewrite rule configurations are in use...