Improper Output Neutralization for Logs in Apache CXF - CVE-2026-50629
Published: August 25, 2026
Vulnerability identifier: #VU145226
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-50629
CWE-ID: CWE-117
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to inject arbitrary content into log files.
The vulnerability exists due to improper neutralization of special elements used in a log entry in the OAuth2 server logging of the clientId parameter when handling incoming HTTP requests. A remote attacker can supply a crafted client identifier containing control characters to inject arbitrary content into log files.
Injected content may include fake log entries.
Affected software
Apache CXF
How to mitigate CVE-2026-50629
Install security update from vendor's website.
Apache CXF - addressed in versions 4.1.7, 4.2.2