weblogic server proxy plug-in vulnerabilities and fixes

Recent CVEs affecting weblogic server proxy plug-in, with upgrade or downgrade steps. 1 tracked.

Also searched as: weblogic server proxy plug in, weblogicserverproxyplug-in.

weblogic server proxy plug-in has 1 tracked vulnerability, 1 critical and 1 exploited in the wild (CISA KEV). A fixed release or vendor patch exists for 1. Most recent: 2026-01-20. Highest priority: CVE-2026-21962 (score 98/100).

• CVE-2026-21962 CRITICAL 10.0 EXPLOITED DOWNGRADE DOWNGRADE Oracle HTTP Server and Oracle Weblogic Server Proxy Plug-in Improper Access Control Vulnerability

FAQ

How do I fix weblogic server proxy plug-in vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is weblogic server proxy plug-in being exploited right now?

Yes: 1 weblogic server proxy plug-in CVE is on the CISA Known Exploited Vulnerabilities list, so patch it first.

Which weblogic server proxy plug-in CVE should I patch first?

CVE-2026-21962 currently ranks highest (98/100): Oracle HTTP Server and Oracle Weblogic Server Proxy Plug-in Improper Access Control Vulnerability.

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