CVE-2026-50629: The 'clientId' parameter from incoming HTTP requests is directly concatenated into OAuth2 server log warning messages without sanitizing control characters…

PriorityP333medium5.3CVSS 3.1

AVNACLPRNUINSUCNILAN

EPSS

0.47%

37.6th percentile

The 'clientId' parameter from incoming HTTP requests is directly concatenated into OAuth2 server log warning messages without sanitizing control characters. This allows an attacker to inject arbitrary content, including fake log entries, into the server's log files. Users are recommended to upgrade to versions 4.2.2 or 4.1.7, which fixes this issue.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
apache	cxf	< 4.1.7	4.1.7
apache	cxf	>= 4.2.0 < 4.2.2	4.2.2
apache_software_foundation	apache_cxf	< 4.1.7	4.1.7
apache_software_foundation	apache_cxf	>= 4.2.0 < 4.2.2	4.2.2

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.