OAS - Oracle Analytics Server 5.5 Bundle Patch 18.104.22.168.201012 is available at support site.
This patch, 32003790, is for Windows and Linux and has a long list of Bug fixes included.
You can find the patch here: https://support.oracle.com/epmos/faces/PatchResultsNDetails?patchId=32003790
And the readme here: https://updates.oracle.com/Orion/Services/download?type=readme&aru=23857617
There is also a critical security patch for Weblogic, described here Security Alert CVE-2020-14750 Patch Availability Document for Oracle WebLogic Server (Doc ID 2724951.1)