{"id":"CVE-2026-119287","title":"Zuke: Command-form registry descriptors bypass the MCP launch policy","summary":"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…","severity":"high","cvss":8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-862"],"vendor":"zuke-build","product":"zuke","affected":["zuke < 1.51.0"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-11-04T22:57:28.343811Z"},"published":"2026-10-30","updated":"2026-11-04","sourceUpdated":"2026-11-04T22:57:38.406Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-119287","references":[{"url":"https://github.com/zuke-build/zuke/security/advisories/GHSA-2rmh-5cw4-33gr","label":"https://github.com/zuke-build/zuke/security/advisories/GHSA-2rmh-5cw4-33gr"},{"url":"https://github.com/zuke-build/zuke/pull/542","label":"https://github.com/zuke-build/zuke/pull/542"},{"url":"https://github.com/zuke-build/zuke/commit/4257b0bc5ef5e387a44f913349646d4baccd1654","label":"https://github.com/zuke-build/zuke/commit/4257b0bc5ef5e387a44f913349646d4baccd1654"},{"url":"https://github.com/zuke-build/zuke/releases/tag/core-v1.51.0","label":"https://github.com/zuke-build/zuke/releases/tag/core-v1.51.0"}],"tags":["cve.org"],"epss":0.00223,"epssPercentile":0.12998,"ingestedAt":"2026-11-05T21:36:00.667Z","slug":"CVE-2026-119287","body":"## Overview\n\nZuke 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.\n\n## Affected\n\n- `zuke < 1.51.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":44,"depthScoreParts":{"impact":44,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}