CVE-2026-50629

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 or 3.6.12, which fixes this issue.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://lists.apache.org/thread/xw95po30p8th58ms1no6b0f2375cql00	Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/06/11/6	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:apache:cxf::::::::
	cpe:2.3:a:apache:cxf::::::::

History

26 Oct 2026, 11:10

Type	Values Removed	Values Added
Summary		(es) El parámetro ’clientId’ de las solicitudes HTTP entrantes se concatena directamente en los mensajes de advertencia del registro del servidor OAuth2 sin sanear los caracteres de control. Esto permite a un atacante inyectar contenido arbitrario, incluyendo entradas de registro falsas, en los archivos de registro del servidor. Se recomienda a los usuarios actualizar a las versiones 4.2.2 o 4.1.7, que corrigen este problema.

Information

Published : 2026-06-12 10:16

Updated : 2026-10-26 11:10

NVD link : CVE-2026-50629

Mitre link : CVE-2026-50629

CVE.ORG link : CVE-2026-50629

JSON object : View

Products Affected

apache

cxf

CWE

CWE-93

Improper Neutralization of CRLF Sequences ('CRLF Injection')

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