{"schema_version": "1.6.1", "id": "CVE-2026-53405", "summary": "Remote Code Execution via Flowable BPMN Groovy ScriptTask", "details": "Improper Isolation or Compartmentalization vulnerability in Apache Syncope.\n\nAn administrator with adequate entitlements can import arbitrary BPMN process definitions via the REST API and then start the process. When a BPMN process containing a Groovy scriptTask is imported and started, the Groovy script is executed directly on the server, with no sandbox.\n\n\nThis issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.6, from 4.1.0-M0 through 4.1.1.\n\n\n\n\nUsers are recommended to upgrade to version 4.0.7 / 4.1.2, which fix this issue by wrapping Flowable's Groovy scriptTasks with security sandbox.", "affected": [{"ranges": [{"type": "SEMVER", "events": [{"introduced": "3.0.0-M0"}, {"last_affected": "3.0.0-M0"}]}, {"type": "SEMVER", "events": [{"introduced": "4.0.0-M0"}, {"last_affected": "4.0.0-M0"}]}, {"type": "SEMVER", "events": [{"introduced": "4.1.0-M0"}, {"last_affected": "4.1.0-M0"}]}]}], "references": [{"type": "WEB", "url": "https://lists.apache.org/thread/vdq0tk6ylffz6trbgbllj9kb1ndzff7k"}]}