This issue affects Temporal: through 1.29.1. Fixed in 1.27.4, 1.28.2, 1.29.2.
Metrics
Affected Vendors & Products
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-hmhp-gh8m-c8xp | Temporal has an Incorrect Authorization vulnerability |
Solution
No solution given by the vendor.
Workaround
Set system.enableCrossNamespaceCommands to false, unless cross-namespace workflow-task commands are explicitly required.
Mon, 05 Jan 2026 10:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Temporal
Temporal temporal |
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| Vendors & Products |
Temporal
Temporal temporal |
Fri, 02 Jan 2026 16:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Tue, 30 Dec 2025 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Cross Namespace Commands Authorization Bypass | |
| Weaknesses | CWE-863 | |
| References |
| |
| Metrics |
cvssV4_0
|
Projects
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Status: PUBLISHED
Assigner: Temporal
Published:
Updated: 2026-01-02T15:30:19.797Z
Reserved: 2025-12-19T19:19:01.833Z
Link: CVE-2025-14987
Updated: 2026-01-02T15:30:14.976Z
Status : Awaiting Analysis
Published: 2025-12-30T21:15:43.343
Modified: 2025-12-31T20:42:43.210
Link: CVE-2025-14987
No data.
OpenCVE Enrichment
Updated: 2026-01-05T10:19:31Z
Github GHSA