{"id":"CVE-2026-119287","state":"PUBLISHED","title":"Zuke: Command-form registry descriptors bypass the MCP launch policy","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.","publishedAt":"2026-10-30T15:39:52.468Z","updatedAt":"2026-10-30T15:39:52.468Z","severity":{"score":8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["zuke-build zuke"],"affected":[{"vendor":"zuke-build","product":"zuke","versions":[{"version":"< 1.51.0","status":"affected"}]}],"references":["https://github.com/zuke-build/zuke/security/advisories/GHSA-2rmh-5cw4-33gr","https://github.com/zuke-build/zuke/pull/542","https://github.com/zuke-build/zuke/commit/4257b0bc5ef5e387a44f913349646d4baccd1654","https://github.com/zuke-build/zuke/releases/tag/core-v1.51.0"],"weaknesses":["CWE-862"],"ingestedAt":"2026-10-30T15:48:06.263Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/119xxx/CVE-2026-119287.json","commit":"c697a8fb9a713113e825a96b07a618b21ed55a21","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-119287","state":"PUBLISHED","datePublished":"2026-10-30T15:39:52.468Z","dateUpdated":"2026-10-30T15:39:52.468Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-10-29T18:50:28.065Z"},"containers":{"cna":{"title":"Zuke: Command-form registry descriptors bypass the MCP launch policy","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"zuke-build","product":"zuke","versions":[{"version":"< 1.51.0","status":"affected"}]}],"references":[{"url":"https://github.com/zuke-build/zuke/security/advisories/GHSA-2rmh-5cw4-33gr","name":"https://github.com/zuke-build/zuke/security/advisories/GHSA-2rmh-5cw4-33gr","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/zuke-build/zuke/pull/542","name":"https://github.com/zuke-build/zuke/pull/542","tags":["x_refsource_MISC"]},{"url":"https://github.com/zuke-build/zuke/commit/4257b0bc5ef5e387a44f913349646d4baccd1654","name":"https://github.com/zuke-build/zuke/commit/4257b0bc5ef5e387a44f913349646d4baccd1654","tags":["x_refsource_MISC"]},{"url":"https://github.com/zuke-build/zuke/releases/tag/core-v1.51.0","name":"https://github.com/zuke-build/zuke/releases/tag/core-v1.51.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-862","lang":"en","description":"CWE-862: Missing Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-30T15:39:52.468Z"},"source":{"advisory":"GHSA-2rmh-5cw4-33gr","discovery":"UNKNOWN"}}}}}