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 the gRPC boundary. The frontend authorizes RespondWorkflowTaskCompleted based on the outer request namespace, but the history service later resolves and executes the command using the namespace embedded in command attributes without authorizing the caller for that target namespace. This can allow a worker authorized for one namespace to create, signal, or cancel workflows in another namespace.
This issue affects Temporal: through 1.29.1. Fixed in 1.27.4, 1.28.2, 1.29.2.
CVSS
No CVSS.
References
Configurations
No configuration.
History
30 Dec 2025, 21:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-12-30 21:15
Updated : 2025-12-31 20:42
NVD link : CVE-2025-14987
Mitre link : CVE-2025-14987
CVE.ORG link : CVE-2025-14987
JSON object : View
Products Affected
No product.
CWE
CWE-863
Incorrect Authorization