Use of a broken or risky cryptographic algorithm in Apache Tomcat - CVE-2026-29146

Vulnerability identifier: #VU125739

CSH Severity: Medium

CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-29146

CWE-ID: CWE-327

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to decrypt protected communications.

The vulnerability exists due to the use of a padding-oracle-prone cryptographic mode in EncryptInterceptor when processing encrypted traffic with the default CBC configuration. A remote attacker can perform a padding oracle attack to decrypt protected communications.

Apache Tomcat
Debian Linux
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
Anolis OS
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Web and Scripting Module
openSUSE Leap
openEuler
Db2 Developer Extension
Storage Defender Copy Data Management
Integration Bus for z/OS
CICS Transaction Gateway Desktop Edition
CICS Transaction Gateway for Multiplatforms
ApplinX
IBM Watson Discovery for IBM Cloud Pak for Data
Jira Service Management Data Center
Confluence Data Center
Jira Software Data Center
Bamboo Data Center
Datastax Enterprise with IBM
IBM Qradar SIEM
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
tomcat (Red Hat package)
tomcat-webapps
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-help
tomcat-jsvc
tomcat-doc
tomcat-jsp-2_3-api
tomcat-servlet-4_0-api
tomcat-el-3_0-api
tomcat-javadoc
tomcat10-servlet-6_0-api
tomcat10
tomcat10-jsp-3_1-api
tomcat10-admin-webapps
tomcat10-el-5_0-api
tomcat10-lib
tomcat10-webapps
tomcat10 (Debian package)
tomcat11-lib
tomcat11-jsp-4_0-api
tomcat11-webapps
tomcat11-embed
tomcat11-jsvc
tomcat11-docs-webapp
tomcat11-doc
tomcat11
tomcat11-servlet-6_1-api
tomcat11-el-6_0-api
tomcat11-admin-webapps
tomcat11 (Debian package)

Install security update from vendor's website.

Apache Tomcat - addressed in versions 9.0.116, 10.1.53, 11.0.20
Db2 Developer Extension - update to 1.1.2
Storage Defender Copy Data Management - update to 2.3.0.1
IBM Watson Discovery for IBM Cloud Pak for Data - update to 5.3.2
Jira Service Management Data Center - addressed in versions 10.3.20, 11.3.4, 11.3.5
IBM Qradar SIEM - update to 7.5.0 Update Pack 15 IF05
Confluence Data Center - addressed in versions 9.2.20, 10.2.11
Jira Software Data Center - addressed in versions 9.12.35, 10.3.20, 11.3.4, 11.3.5
Bamboo Data Center - addressed in versions 10.2.18, 12.1.7
Datastax Enterprise with IBM - update to 6.9.22
tomcat (Red Hat package) - addressed in versions 7.0.76-18.el7_9, 9.0.87-2.el8_8, 9.0.87-2.el9_2, 9.0.87-2.el9_4, 9.0.87-4.el9_6, 9.0.117-2.el9_8
tomcat-webapps - addressed in versions 9.0.87-2, 9.0.117-1, 9.0.120-1
tomcat - addressed in versions 9.0.87-2, 9.0.117-1, 9.0.120-1
tomcat-admin-webapps - addressed in versions 9.0.87-2, 9.0.117-1, 9.0.120-1
tomcat-docs-webapp - addressed in versions 9.0.87-2, 9.0.117-1, 9.0.120-1
tomcat-el-3.0-api - addressed in versions 9.0.87-2, 9.0.117-1, 9.0.120-1
tomcat-jsp-2.3-api - addressed in versions 9.0.87-2, 9.0.117-1, 9.0.120-1
tomcat-lib - addressed in versions 9.0.87-2, 9.0.117-1, 9.0.120-1
tomcat-servlet-4.0-api - addressed in versions 9.0.87-2, 9.0.117-1, 9.0.120-1
tomcat-help - update to 9.0.117-1
tomcat - update to 9.0.117-1
tomcat-jsvc - update to 9.0.117-1
tomcat-doc - addressed in versions 9.0.117-1, 9.0.120-1
tomcat-webapps - addressed in versions 9.0.117-3.163.2, 9.0.117-150200.105.1
tomcat-admin-webapps - addressed in versions 9.0.117-3.163.2, 9.0.117-150200.105.1
tomcat-jsp-2_3-api - addressed in versions 9.0.117-3.163.2, 9.0.117-150200.105.1
tomcat-servlet-4_0-api - addressed in versions 9.0.117-3.163.2, 9.0.117-150200.105.1
tomcat - addressed in versions 9.0.117-3.163.2, 9.0.117-150200.105.1
tomcat-lib - addressed in versions 9.0.117-3.163.2, 9.0.117-150200.105.1
tomcat-docs-webapp - update to 9.0.117-3.163.2
tomcat-el-3_0-api - addressed in versions 9.0.117-3.163.2, 9.0.117-150200.105.1
tomcat-javadoc - update to 9.0.117-3.163.2
tomcat10-servlet-6_0-api - update to 10.1.54-150200.5.64.1
tomcat10 - update to 10.1.54-150200.5.64.1
tomcat10-jsp-3_1-api - update to 10.1.54-150200.5.64.1
tomcat10-admin-webapps - update to 10.1.54-150200.5.64.1
tomcat10-el-5_0-api - update to 10.1.54-150200.5.64.1
tomcat10-lib - update to 10.1.54-150200.5.64.1
tomcat10-webapps - update to 10.1.54-150200.5.64.1
tomcat10 (Debian package) - addressed in versions 10.1.55-1~deb12u1, 10.1.55-1~deb13u1
tomcat11-lib - update to 11.0.21-150600.13.18.1
tomcat11-jsp-4_0-api - update to 11.0.21-150600.13.18.1
tomcat11-webapps - update to 11.0.21-150600.13.18.1
tomcat11-embed - update to 11.0.21-150600.13.18.1
tomcat11-jsvc - update to 11.0.21-150600.13.18.1
tomcat11-docs-webapp - update to 11.0.21-150600.13.18.1
tomcat11-doc - update to 11.0.21-150600.13.18.1
tomcat11 - update to 11.0.21-150600.13.18.1
tomcat11-servlet-6_1-api - update to 11.0.21-150600.13.18.1
tomcat11-el-6_0-api - update to 11.0.21-150600.13.18.1
tomcat11-admin-webapps - update to 11.0.21-150600.13.18.1
tomcat11 (Debian package) - update to 11.0.22-1~deb13u1

• https://tomcat.apache.org/security-11.html#Fixed_in_Apache_Tomcat_11.0.20 
• https://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.1.53
• https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.116
• https://lists.apache.org/thread/h8v33b1hwztv0mcvlddgyfx6kgtlhyf9

• Multiple vulnerabilities in Apache Tomcat (March 2026 release)
• openEuler update for tomcat
• Anolis OS update for tomcat
• SUSE update for tomcat11
• SUSE update for tomcat
• SUSE update for tomcat10
• SUSE update for tomcat
• Multiple vulnerabilities in IBM Storage Defender Copy Data Management
• Multiple vulnerabilities in IBM Integration Bus for z/OS
• Multiple vulnerabilities in IBM DataStax Enterprise
• Multiple vulnerabilities in Confluence Data Center
• Debian update for tomcat11
• Debian update for tomcat10
• Multiple vulnerabilities in IBM ApplinX
• Multiple vulnerabilities in IBM Watson Discovery Cartridge
• Multiple vulnerabilities in Jira Service Management Data Center and Jira Service Management Server
• Multiple vulnerabilities in Jira Software Data Center
• 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 9 update for tomcat
• Red Hat Enterprise Linux 8 update for tomcat
• Red Hat Enterprise Linux 7 Extended Lifecycle Support update for tomcat
• Multiple vulnerabilities in IBM CICS Transaction Gateway for Multiplatforms
• Multiple vulnerabilities in CICS Transaction Gateway Desktop Edition
• Anolis OS update for tomcat
• Anolis OS update for tomcat
• Use of a broken or risky cryptographic algorithm in Bamboo Data Center
• Multiple vulnerabilities in Jira Service Management Data Center
• Multiple vulnerabilities in Jira Software Data Center
• Multiple vulnerabilities in IBM QRadar SIEM
• Multiple vulnerabilities in IBM Db2 Developer Extension