CVE-2025-14987 Cross Namespace Commands Authorization Bypass

When system.enableCrossNamespaceCommands is enabled on by default, the Temporal server permits certain workflow task commands e.g. StartChildWorkflowExecution, SignalExternalWorkflowExecution, RequestCancelExternalWorkflowExecution to target a different namespace than the namespace authorized at...

CVE-2025-14987

CVE-2025-14987 : Temporal server has an Incorrect Authorization flaw when system.enableCrossNamespaceCommands is enabled (default on). The frontend validates RespondWorkflowTaskCompleted for the outer namespace, but the history service executes commands using the namespace embedded in command att...

CVE-2025-14987 Cross Namespace Commands Authorization Bypass

When system.enableCrossNamespaceCommands is enabled on by default, the Temporal server permits certain workflow task commands e.g. StartChildWorkflowExecution, SignalExternalWorkflowExecution, RequestCancelExternalWorkflowExecution to target a different namespace than the namespace authorized at...