CVE-2026-50629
Medium
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.
SeverityMedium
CVSS5.3
Exploit probability—
Product
Apache Cxf
PublishedJun 12, 2026
First seenJun 12, 2026
Weakness typeCWE-93CWE-93
How to fix
Update
- apache cxf4.1.7, 4.2.2, 3.6.12 or later
- org.apache.cxf:cxf-rt-rs-security-oauth24.2.2, 4.1.7 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apache cxf | v < 4.1.7, 4.2.0 ≤ v < 4.2.2, v < 3.6.12, 4.0.0 ≤ v < 4.1.7 | 4.1.7, 4.2.2, 3.6.12 |
| org.apache.cxf:cxf-rt-rs-security-oauth2Maven | 4.2.0 ≤ v < 4.2.2, v < 4.1.7 | 4.2.2, 4.1.7 |
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