Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Temporal | Temporal | 1.24.0 – ≤ 1.29.1, 1.24.0 – ≤ 1.28.1, 1.24.0 – ≤ 1.27.3 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 | openSUSE-SU-2026:21483-1 |
| openSUSE Leap 15.6 | govulncheck-vulndb | 0.0.20260114T191543-150000.1.137.1 | SUSE-SU-2026:0142-1 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | temporal | 1.5.1-r3 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | go.temporal.io/server | >= 1.24.0, < 1.27.4 | 1.27.4 | GHSA-p2gr-hm8g-q772 |
| Go | go.temporal.io/server | >= 1.28.0, < 1.28.2 | 1.28.2 | GHSA-p2gr-hm8g-q772 |
| Go | go.temporal.io/server | >= 1.29.0, < 1.29.2 | 1.29.2 | GHSA-p2gr-hm8g-q772 |
| Go | go.temporal.io/server | >= 1.24.0, < 1.27.4 · >= 1.28.0, < 1.28.2 · >= 1.29.0, < 1.29.2 | 1.27.4, 1.28.2, 1.29.2 | GO-2025-4272 |
Advisories 2
- openSUSE-SU-2026:21483-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Jul 31, 2026
- SUSE-SU-2026:0142-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Mar 23, 2026