Improper error handling in Apache Tomcat - CVE-2025-31650

Vulnerability identifier: #VU107996

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-2025-31650

CWE-ID: CWE-388

Exploitation vector: Remote access

Exploit availability: Public exploit is available

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

The vulnerability exists due to insufficient error handling for certain invalid HTTP priority headers. A remote attacker can send a large amount of specially crafted HTTP requests to the server and consume all available memory, resulting in a denial of service condition.

Apache Tomcat
Confluence Server
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server 15 SP3
Debian Linux
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Manager Server
SUSE Enterprise Storage
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Anolis OS
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Web and Scripting Module
openSUSE Leap
openEuler
Ubuntu
Rapid Infrastructure Automation
Cloudera Observability with IBM
DevOps Solution Workbench
IBM Business Automation Manager Open Editions
IBM Engineering Requirements Management DOORS Next
CICS Transaction Gateway for Multiplatforms
CICS Transaction Gateway Desktop Edition
ApplinX
watsonx Assistant Cartridge
watsonx Orchestrate with watsonx Assistant Cartridge - Assistant Builder Component
Telco Service Orchestrator
Storage Protect Plus Server
webMethods BPM
Netcool Operations Insight
IBM Watson Discovery for IBM Cloud Pak for Data
Crowd Data Center
Confluence Data Center
Bitbucket Data Center
Bamboo Server
IBM Integration Bus
Jira Service Management Data Center
Jira Software Data Center
Jira Service Management Server
IBM Power Hardware Management Console (HMC)
NetWorker
Crowd Server
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-jsp-2.3-api
tomcat-el-3.0-api
tomcat-docs-webapp
tomcat-admin-webapps
tomcat
tomcat-lib
tomcat-servlet-4.0-api
tomcat-webapps
tomcat (Red Hat package)
tomcat9 (Red Hat package)
tomcat-doc
tomcat-jsvc
tomcat-help
tomcat-el-3_0-api
tomcat-jsp-2_3-api
tomcat-servlet-4_0-api
tomcat-embed
tomcat-javadoc
tomcat10 (Ubuntu package)
tomcat10-admin-webapps
tomcat10-webapps
tomcat10-lib
tomcat10-jsp-3_1-api
tomcat10-el-5_0-api
tomcat10-servlet-6_0-api
tomcat10-jsvc
tomcat10-embed
tomcat10-docs-webapp
tomcat10
tomcat10-doc
tomcat10 (Debian package)

Install updates from vendor's website.

Apache Tomcat - addressed in versions 9.0.104, 10.1.40, 11.0.6
Rapid Infrastructure Automation - update to 1.1.5.3
Netcool Operations Insight - update to 1.6.15
Cloudera Observability with IBM - update to 3.6.2
IBM Watson Discovery for IBM Cloud Pak for Data - update to 5.2.1
Crowd Data Center - update to 6.3.1
Crowd Server - update to 6.3.1
IBM Qradar SIEM - update to 7.5.0 Update Pack 12 IF02
Confluence Server - addressed in versions 8.5.22, 9.2.4, 9.4.1
Confluence Data Center - addressed in versions 8.5.22, 9.2.4, 9.4.1
IBM Business Automation Manager Open Editions - update to 8.0.8
Bitbucket Data Center - addressed in versions 8.19.18, 9.4.6, 9.6.2
Bitbucket Server - addressed in versions 8.19.18, 9.4.6, 9.6.2
Bamboo Server - addressed in versions 9.6.13, 10.2.4, 11.0.1
IBM Engineering Requirements Management DOORS Next - update to 9.7.2.11
IBM Integration Bus - update to 10.1.0.5
Jira Service Management Data Center - addressed in versions 10.3.6, 10.6.1
Jira Software Server - addressed in versions 10.3.6, 10.6.1
Jira Software Data Center - addressed in versions 10.3.6, 10.6.1
Jira Service Management Server - addressed in versions 10.3.6, 10.6.1
IBM Power Hardware Management Console (HMC) - addressed in versions 10.3.1060.0 SP3, 11.1.1110.0
NetWorker - update to 19.13.0.1
watsonx Assistant Cartridge - update to 5.2.1
watsonx Orchestrate with watsonx Assistant Cartridge - Assistant Builder Component - update to 5.2.1
Telco Service Orchestrator - update to 5.3.2
tomcat-jsp-2.3-api - addressed in versions 9.0.87-1, 9.0.98-3
tomcat-el-3.0-api - addressed in versions 9.0.87-1, 9.0.98-3
tomcat-docs-webapp - addressed in versions 9.0.87-1, 9.0.98-3
tomcat-admin-webapps - addressed in versions 9.0.87-1, 9.0.98-3
tomcat - addressed in versions 9.0.87-1, 9.0.98-3
tomcat-lib - addressed in versions 9.0.87-1, 9.0.98-3
tomcat-servlet-4.0-api - addressed in versions 9.0.87-1, 9.0.98-3
tomcat-webapps - addressed in versions 9.0.87-1, 9.0.98-3
tomcat (Red Hat package) - addressed in versions 9.0.87-1.el8_8.5, 9.0.87-1.el8_10.4, 9.0.87-1.el9_2.4, 9.0.87-1.el9_4.4, 9.0.87-3.el9_6.1
tomcat9 (Red Hat package) - update to 9.0.87-5.el10_0.1
tomcat-doc - update to 9.0.98-3
tomcat-jsvc - update to 9.0.100-2
tomcat - update to 9.0.100-2
tomcat-help - update to 9.0.100-2
tomcat-el-3_0-api - update to 9.0.104-150200.81.1
tomcat-jsp-2_3-api - update to 9.0.104-150200.81.1
tomcat - update to 9.0.104-150200.81.1
tomcat-admin-webapps - update to 9.0.104-150200.81.1
tomcat-servlet-4_0-api - update to 9.0.104-150200.81.1
tomcat-lib - update to 9.0.104-150200.81.1
tomcat-webapps - update to 9.0.104-150200.81.1
tomcat-docs-webapp - update to 9.0.104-150200.81.1
tomcat-embed - update to 9.0.104-150200.81.1
tomcat-jsvc - update to 9.0.104-150200.81.1
tomcat-javadoc - update to 9.0.104-150200.81.1
tomcat10 (Ubuntu package) - addressed in versions 10.1.16-1ubuntu0.1~esm3, 10.1.35-1ubuntu0.1
Storage Protect Plus Server - update to 10.1.18
tomcat10-admin-webapps - update to 10.1.40-150200.5.40.1
tomcat10-webapps - update to 10.1.40-150200.5.40.1
tomcat10-lib - update to 10.1.40-150200.5.40.1
tomcat10-jsp-3_1-api - update to 10.1.40-150200.5.40.1
tomcat10-el-5_0-api - update to 10.1.40-150200.5.40.1
tomcat10-servlet-6_0-api - update to 10.1.40-150200.5.40.1
tomcat10-jsvc - update to 10.1.40-150200.5.40.1
tomcat10-embed - update to 10.1.40-150200.5.40.1
tomcat10-docs-webapp - update to 10.1.40-150200.5.40.1
tomcat10 - update to 10.1.40-150200.5.40.1
tomcat10-doc - update to 10.1.40-150200.5.40.1
tomcat10 (Debian package) - addressed in versions 10.1.52-1~deb12u1, 10.1.52-1~deb13u1
webMethods BPM - addressed in versions 10.15 Fix 14, 11.1 Fix 2

• Exploit #11757 - Tomcat-CVE-2025-31650 (July 3, 2025)
• Exploit #11686 - Dos-exploit- (CVE-2025-31650) (June 20, 2025)
• Exploit #11385 - TomcatKiller-CVE-2025-31650 (May 9, 2025)
• Exploit #11367 - CVE-2025-31650 (May 9, 2025)
• Exploit #11359 - Analysis-of-TomcatKiller---CVE-2025-31650-Exploit-Tool () (May 9, 2025)

• https://lists.apache.org/thread/q4ld9xtv3zrvvs3ykp4b2f9j2tvhq6bl
• https://tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.6
• https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.40
• https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.104

• Multiple vulnerabilities in Apache Tomcat
• SUSE update for tomcat
• openEuler update for tomcat
• SUSE update for tomcat10
• Multiple vulnerabilities in IBM ApplinX
• Bamboo Data Center and Server update for org.apache.tomcat:tomcat-coyote
• Confluence Data Center and Server update for org.apache.tomcat:tomcat-coyote
• Multiple vulnerabilities in IBM Integration Bus
• Multiple vulnerabilities in IBM Rapid Infrastructure Automation
• SUSE update for tomcat10
• SUSE update for tomcat
• Anolis OS update for tomcat
• Multiple vulnerabilities in HPE Telco Service Orchestrator
• Jira Software Data Center and Server update for Apache Tomcat
• Jira Service Management Data Center and Server update for Apache Tomcat
• Crowd Data Center and Server update for Apache Tomcat
• Bitbucket Data Center and Server update for Apache Tomcat
• Multiple vulnerabilities in IBM QRadar SIEM
• Red Hat Enterprise Linux 10 update for tomcat9
• Red Hat Enterprise Linux 8 update for tomcat
• Red Hat Enterprise Linux 9 update for tomcat
• Red Hat Enterprise Linux 9 update for tomcat
• Red Hat Enterprise Linux 9 update for tomcat
• Red Hat Enterprise Linux 8 update for tomcat
• Anolis OS update for tomcat
• Multiple vulnerabilities in IBM Business Automation Manager Open Editions
• Ubuntu update for tomcat10
• Multiple vulnerabilities in IBM Watson Discovery Cartridge
• Dell NetWorker update for Apache Tomcat
• Multiple vulnerabilities in IBM watsonx Assistant Cartridge and IBM watsonx Orchestrate with watsonx Assistant Cartridge
• Multiple vulnerabilities in IBM DevOps Solution Workbench
• Multiple vulnerabilities in Cloudera Observability on Premises with IBM
• Multiple vulnerabilities in IBM webMethods BPM
• Multiple vulnerabilities in IBM Power HMC
• Multiple vulnerabilities in Netcool Operations Insight
• Debian update for tomcat10
• 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)
• Multiple vulnerabilities in IBM CICS Transaction Gateway for Multiplatforms
• Multiple vulnerabilities in CICS Transaction Gateway Desktop Edition