CVE-2026-50629
mediumpriority · track · 0EPSS 0.004 · 38 %ileDEEUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.9–8.2
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (27)
Products and version ranges known to be affected.
- IBM WebSphere Application Server Libertyall versionscert_bundDEcpe:/a:ibm:websphere_application_server_liberty:-
- IBM WebSphere Application Server Liberty 17.0.0.3-26.0.0.9all versionscert_bundDEcpe:/a:ibm:websphere_application_server_liberty:17.0.0.3_-_26.0.0.9
- IBM WebSphere Application Server libertyall versionscert_bundDEcpe:/a:ibm:websphere_application_server:liberty
- IBM WebSphere Service Registry and Repositoryall versionscert_bundDEcpe:/a:ibm:websphere_service_registry_and_repository:-
- IBM WebSphere Service Registry and Repository 8.5all versionscert_bundDEcpe:/a:ibm:websphere_service_registry_and_repository:8.5
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-1895Apache CXF: Mehrere SchwachstellenDeutsch2026-06-11csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Apache CXF ausnutzen, um Sicherheitsvorkehrungen zu umgehen, XML-External-Entity-Angriffe durchzuführen, Daten zu manipulieren oder vertrauliche Informationen offenzulegen.
- GHSA-f8p7-h97q-7vx7Apache CXF OAuth2 Log Injection via Unsanitized Client Identifier2026-06-12ghsa · osvUS
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.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2026/06/11/6cnnvd
- https://cxf.apache.org/download.htmlPatchcnnvd
- https://lists.apache.org/thread/xw95po30p8th58ms1no6b0f2375cql00cnnvd
- https://lists.apache.org/thread/xw95po30p8th58ms1no6b0f2375cql00enisa_euvd
- http://www.openwall.com/lists/oss-security/2026/06/11/6Mailing ListThird Party Advisorynvd
- https://lists.apache.org/thread/xw95po30p8th58ms1no6b0f2375cql00Vendor Advisorynvd
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