ExecuteMultiOperation Namespace Policy Bypass_CVE-2025-14986

1.3 / 10

LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/S:N/AU:Y/R:U/RE:L/U:Green

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.

Basic Information

ID CVE-2025-14986

Source Temporal

Published Dec 30, 2025 at 20:17

Affected Product

Vendor Temporal

Product Temporal

Version 1.24.0

Affected Versions Temporal Temporal 1.24.0
Temporal Temporal 1.24.0
Temporal Temporal 1.24.0

CWE Classification

CWE-863

References

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    "published": "2025-12-30T20:17:47.201Z",
    "modified": "2025-12-30T20:17:47.201Z",
    "type": "cve",
    "title": "ExecuteMultiOperation Namespace Policy Bypass",
    "source": "Temporal",
    "references": "https://github.com/temporalio/temporal/releases/tag/v1.27.4\nhttps://github.com/temporalio/temporal/releases/tag/v1.28.2\nhttps://github.com/temporalio/temporal/releases/tag/v1.29.2",
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