Improper Isolation or Compartmentalization Affecting org.apache.syncope.ext.flowable:syncope-ext-flowable-bpmn package, versions [3.0.0-M0,4.0.7)[4.1.0-M0,4.1.2)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published27 Aug 2026
- disclosed20 Jul 2026
- creditfollycat, Y0n3er
Introduced: 20 Jul 2026
CVE-2026-53405 (opens in a new tab)How to fix?
Upgrade org.apache.syncope.ext.flowable:syncope-ext-flowable-bpmn to version 4.0.7, 4.1.2 or higher.
Overview
org.apache.syncope.ext.flowable:syncope-ext-flowable-bpmn is an Open Source system for managing digital identities in enterprise environments,
Affected versions of this package are vulnerable to Improper Isolation or Compartmentalization via the processEngineConfiguration setup in FlowableWorkflowContext.java. An administrator with the required entitlements can import a BPMN process definition containing a Groovy scriptTask through the REST API and start it, causing the Groovy code to run directly on the server. This lets the attacker execute arbitrary Groovy logic in the Syncope process engine context, which can break out of the intended workflow sandbox and take control of server-side execution. For users, importing and starting a malicious process can lead to unauthorized command execution on the Syncope server and compromise of the host running workflow processing.