ExecuteMultiOperation Namespace Policy Bypass
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-863.
Summary
When frontend.enableExecuteMultiOperation is enabled, the server can apply namespace-scoped validation and feature gates for the embedded StartWorkflowExecutionRequest using its Namespace field rather than the outer, authorized ExecuteMultiOperationRequest.Namespace. This allows a caller authorized for one namespace to bypass that namespace's limits/policies by setting the embedded start request's namespace to a different namespace. The workflow is still created in the outer (authorized) namespace; only validation/gating is performed under the wrong namespace context. This issue affects Temporal: from 1.24.0 through 1.29.1. Fixed in 1.27.4, 1.28.2, 1.29.2.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Temporal | Temporal | 1.24.0 – 1.29.1; 1.24.0 – 1.28.1; 1.24.0 – 1.27.3 | — | No fix listed | CNA |
| — | go.temporal.io/server (Go) | 1.24.0 to before 1.27.4 | 1.27.4 | Patch available | GHSA-p2gr-hm8g-q772 |
| — | go.temporal.io/server (Go) | 1.28.0 to before 1.28.2 | 1.28.2 | Patch available | GHSA-p2gr-hm8g-q772 |
| — | go.temporal.io/server (Go) | 1.29.0 to before 1.29.2 | 1.29.2 | Patch available | GHSA-p2gr-hm8g-q772 |
- Temporal VendorTemporal Affected 1.24.0 – 1.29.1; 1.24.0 – 1.28.1; 1.24.0 – 1.27.3 Fixed in — No fix listed CNA
- go.temporal.io/server (Go) Vendor— Affected 1.24.0 to before 1.27.4 Fixed in 1.27.4 Patch available GHSA-p2gr-hm8g-q772
- go.temporal.io/server (Go) Vendor— Affected 1.28.0 to before 1.28.2 Fixed in 1.28.2 Patch available GHSA-p2gr-hm8g-q772
- go.temporal.io/server (Go) Vendor— Affected 1.29.0 to before 1.29.2 Fixed in 1.29.2 Patch available GHSA-p2gr-hm8g-q772
Remediation
- Fix · GHSA-p2gr-hm8g-q772 go.temporal.io/server (Go) Fixed in 1.27.4 Advisory →
- Fix · GHSA-p2gr-hm8g-q772 go.temporal.io/server (Go) Fixed in 1.28.2 Advisory →
- Fix · GHSA-p2gr-hm8g-q772 go.temporal.io/server (Go) Fixed in 1.29.2 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2025-14986
- 2026-10-03 Alias added: GHSA-p2gr-hm8g-q772
References
More Temporal vulnerabilities
- TI-2025-07683 Resource allocation without limits in Temporal OSS Server CVSS 4.0MEDIUM 6.9
- TI-2025-13670 Cross Namespace Commands Authorization Bypass CVSS 4.0MEDIUM 5.3
- TI-2023-03253 Insecure Default Authorization in Temporal Server CVSS 3.1LOW 3.6
Sources
- CVE-2025-14986 · CVE Program
- CVE-2025-14986 · NVD
- FIRST EPSS
- GHSA-p2gr-hm8g-q772 · GitHub Advisory Database · CC BY 4.0
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