Input validation error in Apache CXF - CVE-2026-64958

Vulnerability identifier: #VU144824

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-2026-64958

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper input validation in message header attachment processing when handling messages with many attachment headers. A remote attacker can send a specially crafted message to cause a denial of service.

Apache CXF
IBM Tivoli System Automation Application Manager
IBM Tivoli Monitoring
IBM Robotic Process Automation
IBM Tivoli Netcool Configuration Manager
Maximo Application Suite - Monitor Component

Install security update from vendor's website.

Apache CXF - addressed in versions 3.6.12, 4.1.8, 4.2.3
IBM Tivoli Monitoring - update to 6.3.0.7 Plus Service Pack 5
Maximo Application Suite - Monitor Component - addressed in versions 9.0.25, 9.1.15, 9.2.4
IBM Robotic Process Automation - addressed in versions 23.0.20.7, 30.0.4

• https://lists.apache.org/api/email.lua?id=92spo4psz2fqf1f76l9hh5wm57fw3f92

• Multiple vulnerabilities in Apache CXF
• Multiple vulnerabilities in IBM Tivoli Monitoring
• Multiple vulnerabilities in IBM Tivoli System Automation Application Manager
• Multiple vulnerabilities in IBM Tivoli Netcool Configuration Manager (ITNCM)
• Multiple vulnerabilities in IBM Maximo Application Suite - Monitor Component
• Multiple vulnerabilities in IBM Robotic Process Automation