Apache Syncope contains an improper isolation vulnerability that allows an administrator with certain entitlements to execute untrusted Groovy code on a separate thread, bypassing the Groovy security sandbox. This affects versions from 3.0.0-M0 through 3.0.16, 4.0.0-M0 through 4.0.8, and 4.1.0-M0 through 4.1.3. Upgrading to versions 4.0.9 or 4.1.4 addresses this issue.