Input validation error in Apache CXF - CVE-2026-64958
Published: August 24, 2026
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
Vulnerability details
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.
Affected software
Apache CXF
IBM Tivoli Monitoring
IBM Tivoli Monitoring
How to mitigate CVE-2026-64958
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
IBM Tivoli Monitoring - update to 6.3.0.7 Plus Service Pack 5