CVE-2026-119287 Details
Description
Zuke is a code-first, strongly typed build automation system for Deno. Prior to 1.51.0, the @zuke/core MCP registry mode accepts command-form registry descriptors without applying the ZUKE_REGISTRY_LAUNCH_HOSTS authorization enforced for remote module descriptors. When zuke mcp --registry --allow-run reads a registry writable by another party and a run-capable caller invokes the affected tool, the registry writer can choose the program and arguments executed with the operator's environment and workspace access. The --allow-run and --protect name globs do not contain the issue because the descriptor supplies those names, and the optional destructive confirmation displays a description controlled by the same writer. The local default registry populated only through zuke register is not affected because that command writes module-form descriptors. This issue is fixed in version 1.51.0.
A vulnerability in Zuke, a build automation system for Deno, allows for arbitrary command execution on the machine running the MCP server. This issue affects versions prior to 1.51.0. The vulnerability arises because the MCP registry mode accepts command-form registry descriptors without the necessary authorization, enabling registry writers to choose programs and arguments that are executed with the operator's environment and workspace access. The local default registry is not affected, as it only accepts module-form descriptors.
Users can upgrade to Zuke version 1.51.0, where this vulnerability is fixed. Alternatively, users can stop using the '--allow-run' option with a registry-mode server or ensure that the server only accesses a registry that is not writable by others.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 30, 2026CISA-ADP
Assessed Nov 4, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/zuke-build/zuke/commit/4257b0bc5ef5e387a44f913349646d4baccd1654 | [email protected] | Source CodeVendor |
| https://github.com/zuke-build/zuke/pull/542 | [email protected] | Source CodeVendor |
| https://github.com/zuke-build/zuke/releases/tag/core-v1.51.0 | [email protected] | Release NotesVendor |
| https://github.com/zuke-build/zuke/security/advisories/GHSA-2rmh-5cw4-33gr | [email protected] | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-862 | Missing Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Zuke | < 1.51.0 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 4, 2026 | CVE Modified | CISA-ADP |
| Oct 30, 2026 | New CVE Received | [email protected] |
Volerion