PatchSiren cyber security CVE debrief

CVE-2026-50629 Apache Software Foundation CVE debrief

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.

Vendor: Apache Software Foundation
Product: Apache CXF
CVSS: MEDIUM 5.3
CISA KEV: Not listed in stored evidence
Original CVE published: 2026-06-12
Original CVE updated: 2026-06-12
Advisory published: 2026-06-12
Advisory updated: 2026-06-12

Who should care

Users of Apache CXF versions prior to 4.2.2 or 4.1.7 should upgrade to a patched version to prevent log injection attacks.

Technical summary

The vulnerability has a CVSS score of 5.3 and is classified as CWE-93. The CVSS vector is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Defensive priority

MEDIUM

Recommended defensive actions

Upgrade to Apache CXF version 4.2.2 or 4.1.7 to fix the issue.

Evidence notes

The vulnerability was published on June 12, 2026, and modified on the same day.

Official resources

CVE-2026-50629 CVE record
CVE.org
CVE-2026-50629 NVD detail
NVD
Source item URL
nvd_modified
Mitigation or vendor reference
[email protected] - Vendor Advisory
Mitigation or vendor reference
af854a3a-2127-422b-91ae-364da2661108 - Mailing List, Third Party Advisory

CVE-2026-50629 was published on 2026-06-12T10:16:22.830Z and modified on 2026-06-12T19:04:34.927Z.