CVE-2026-50629 — MEDIUM (5.3)

Q: How severe is CVE-2026-50629?

CVE-2026-50629 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-50629?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Cxf.

Vulnerability Description

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 Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Apache	Cxf	< 4.1.7

Related Weaknesses (CWE)

CWE-93

References

https://lists.apache.org/thread/xw95po30p8th58ms1no6b0f2375cql00Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/06/11/6Mailing ListThird Party Advisory

FAQ

What is CVE-2026-50629?

CVE-2026-50629 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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...

How severe is CVE-2026-50629?

CVE-2026-50629 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-50629?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Cxf.