CVE-2026-50629
Published:June 12, 2026
Updated:June 28, 2026
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 Packages
https://github.com/apache/cxf.git (GITHUB):
Affected version(s) >=cxf-4.2.0 <cxf-4.2.2Fix Suggestion:
Update to version cxf-4.2.2https://github.com/apache/cxf.git (GITHUB):
Affected version(s) >=cxf-2.1 <cxf-4.1.7Fix Suggestion:
Update to version cxf-4.1.7org.apache.cxf:cxf-rt-rs-security-oauth2 (JAVA):
Affected version(s) >=4.2.0 <4.2.2Fix Suggestion:
Update to version 4.2.2org.apache.cxf:cxf-rt-rs-security-oauth2 (JAVA):
Affected version(s) >=2.6.0 <4.1.7Fix Suggestion:
Update to version 4.1.7Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of CRLF Sequences ('CRLF Injection')
EPSS
Base Score:
0.47