Input validation error in Apache Tomcat - CVE-2025-52434

Vulnerability identifier: #VU112274

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-52434

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when handling HTTP/2 requests with APR/Native. A remote attacker can send specially crafted HTTP requests to the server and perform a denial of service (DoS) attack.

Apache Tomcat
SUSE Manager Server 4.3
SUSE Linux Enterprise Server 15 SP3
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Manager Server
SUSE Enterprise Storage
Red Hat Enterprise Linux for Power, little endian
Anolis OS
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Server - AUS
Web and Scripting Module
openSUSE Leap
openEuler
Oracle Solaris
IBM Watson Discovery for IBM Cloud Pak for Data
Crowd Data Center
Jira Service Management Server
Jira Service Management Data Center
Bitbucket Data Center
Bamboo Server
Jira Software Data Center
IBM Power Hardware Management Console (HMC)
Traffix SDC
UrbanCode Build
DevOps
IBM Business Automation Manager Open Editions
IBM Engineering Requirements Management DOORS Next
Integration Bus for z/OS
ApplinX
Storage Protect Plus Server
webMethods BPM
Cloudera Data Platform Private Cloud Base for IBM
IBM Qradar SIEM
Jira Software Server
Bitbucket Server
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
tomcat
tomcat-admin-webapps
tomcat-docs-webapp
tomcat-el-3.0-api
tomcat-jsp-2.3-api
tomcat-lib
tomcat-servlet-4.0-api
tomcat-webapps
tomcat (Red Hat package)
tomcat9 (Red Hat package)
tomcat-help
tomcat-jsvc
tomcat-doc
tomcat-jsp-2_3-api
tomcat-el-3_0-api
tomcat-embed
tomcat-servlet-4_0-api
tomcat-javadoc

Install updates from vendor's website.

Apache Tomcat - update to 9.0.107
IBM Watson Discovery for IBM Cloud Pak for Data - update to 5.2.1
Crowd Data Center - addressed in versions 5.3.8, 6.0.10, 6.1.6, 6.2.5, 6.3.2
Jira Service Management Server - addressed in versions 5.12.26, 10.3.9
Jira Service Management Data Center - addressed in versions 5.12.26, 10.3.9
DevOps - update to 7.1.0.2
IBM Qradar SIEM - update to 7.5.0 Update Pack 13 IF01
IBM Business Automation Manager Open Editions - update to 8.0.8
Bitbucket Server - addressed in versions 8.19.21, 9.4.9, 9.6.5
Bitbucket Data Center - addressed in versions 8.19.21, 9.4.9, 9.6.5
Bamboo Server - addressed in versions 9.6.16, 10.2.8
IBM Engineering Requirements Management DOORS Next - update to 9.7.2.11
Jira Software Server - addressed in versions 9.12.26, 10.3.9, 11.0.0
Jira Software Data Center - addressed in versions 9.12.26, 10.3.9, 11.0.0
IBM Power Hardware Management Console (HMC) - addressed in versions 10.3.1060.0 SP3, 11.1.1110.0
tomcat - addressed in versions 9.0.87-1, 9.0.107-1, 9.0.115-1
tomcat-admin-webapps - addressed in versions 9.0.87-1, 9.0.107-1, 9.0.115-1
tomcat-docs-webapp - addressed in versions 9.0.87-1, 9.0.107-1, 9.0.115-1
tomcat-el-3.0-api - addressed in versions 9.0.87-1, 9.0.107-1, 9.0.115-1
tomcat-jsp-2.3-api - addressed in versions 9.0.87-1, 9.0.107-1, 9.0.115-1
tomcat-lib - addressed in versions 9.0.87-1, 9.0.107-1, 9.0.115-1
tomcat-servlet-4.0-api - addressed in versions 9.0.87-1, 9.0.107-1, 9.0.115-1
tomcat-webapps - addressed in versions 9.0.87-1, 9.0.107-1, 9.0.115-1
tomcat (Red Hat package) - addressed in versions 9.0.87-1.el8_8.7, 9.0.87-1.el8_10.6, 9.0.87-1.el9_2.6, 9.0.87-3.el9_6.3
tomcat9 (Red Hat package) - update to 9.0.87-5.el10_0.3
tomcat-help - update to 9.0.100-6
tomcat - update to 9.0.100-6
tomcat-jsvc - update to 9.0.100-6
tomcat-doc - addressed in versions 9.0.107-1, 9.0.115-1
tomcat-docs-webapp - update to 9.0.108-150200.91.1
tomcat-admin-webapps - update to 9.0.108-150200.91.1
tomcat-jsp-2_3-api - update to 9.0.108-150200.91.1
tomcat-el-3_0-api - update to 9.0.108-150200.91.1
tomcat-webapps - update to 9.0.108-150200.91.1
tomcat-lib - update to 9.0.108-150200.91.1
tomcat - update to 9.0.108-150200.91.1
tomcat-embed - update to 9.0.108-150200.91.1
tomcat-servlet-4_0-api - update to 9.0.108-150200.91.1
tomcat-javadoc - update to 9.0.108-150200.91.1
tomcat-jsvc - update to 9.0.108-150200.91.1
Storage Protect Plus Server - update to 10.1.18
webMethods BPM - addressed in versions 10.15 Fix 14, 11.1 Fix 2
Oracle Solaris - update to 11.4 SRU 86

• https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.107
• https://github.com/apache/tomcat/commit/8a83c3c42d20762782678932c14005cd3397a018
• https://lists.apache.org/thread/n7f5v6fzovfxkpqf5q0cztqqn0kjjs4p

• Multiple vulnerabilities in Apache Tomcat
• openEuler 24.03 LTS SP2 update for tomcat
• openEuler 24.03 LTS SP1 update for tomcat
• openEuler 24.03 LTS update for tomcat
• openEuler 22.03 LTS SP4 update for tomcat
• openEuler 22.03 LTS SP3 update for tomcat
• openEuler 20.03 LTS SP4 update for tomcat
• Two denial of service vulnerabilities in Traffix SDC Apache Tomcat component
• Multiple vulnerabilities in IBM Business Automation Manager Open Editions
• Anolis OS update for tomcat
• Anolis OS update for tomcat
• Bitbucket Data Center and Server update for Apache Tomcat
• Crowd Data Center update for Apache Tomcat
• Multiple vulnerabilities in IBM Integration Bus for z/OS
• Red Hat Enterprise Linux 8 update for tomcat
• Red Hat Enterprise Linux 10 update for tomcat9
• Red Hat Enterprise Linux 9 update for tomcat
• Red Hat Enterprise Linux 8 update for tomcat
• Red Hat Enterprise Linux 9 update for tomcat
• Anolis OS update for tomcat
• Multiple vulnerabilities in IBM QRadar SIEM
• SUSE update for tomcat
• Multiple vulnerabilities in IBM Watson Discovery
• Multiple vulnerabilities in IBM ApplinX
• Multiple vulnerabilities in Oracle Solaris
• Multiple vulnerabilities in IBM webMethods BPM
• Multiple vulnerabilities in IBM Power HMC
• Bamboo Data Center and Server update for tomcat-util
• Jira Service Management Data Center and Server update for org.apache.tomcat:tomcat-coyote
• Jira Software Data Center and Server update for org.apache.tomcat:tomcat-coyote
• Multiple vulnerabilities in IBM DevOps Build
• Anolis OS update for tomcat
• Multiple vulnerabilities in IBM Engineering Requirements Management DOORS and DOORS Web Access
• Multiple vulnerabilities in IBM Storage Protect Plus Server
• Multiple vulnerabilities in IBM Cloudera Data Platform Private Cloud Base with IBM (CDP)