{"id":"CVE-2026-105789","revision":null,"records":[{"revision":"7041ec2d92d74027b3c1dc3dc7d88b27","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-105789","aliases":[],"title":"Microsoft UFO: Arbitrary file write in the Linux MCP `execute_command` tool","description":"Microsoft UFO is an open-source framework for intelligent automation across devices and platforms. Prior to 3.0.9, the execute_command tool in ufo/client/mcp/http_servers/linux_mcp_server.py treats sort and uniq as read-only commands while the free-form command parameter can select their file-output forms. An authenticated caller can use sort -o or the optional second uniq operand to create or overwrite files writable by the UFO server process without shell metacharacters, because the allowed binary opens the destination itself and the argument policy does not reject the operation. This can corrupt configuration or other writable data and disrupt the service, but the demonstrated primitive does not directly disclose files or establish arbitrary code execution. This issue is fixed in version 3.0.9.","state":0,"publishedAt":"2026-10-06T14:07:25.605+00:00","modifiedAt":"2026-10-06T14:47:07.288+00:00","affected":[{"ecosystem":"Vendor product","name":"UFO","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"microsoft\",\n                    \"product\": \"UFO\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 3.0.9\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:L","score":5.4,"severity":"MEDIUM"}],"references":["https://github.com/microsoft/UFO/security/advisories/GHSA-85w2-wggf-rw49","https://github.com/microsoft/UFO/pull/349","https://github.com/microsoft/UFO/commit/4f793622794f5d47810d54bed431c61f6a781dd6","https://github.com/microsoft/UFO/releases/tag/v3.0.9"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-105789","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-105789","identifiers":["CVE-2026-105789"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-11T14:57:42.7555955+00:00","complete":true,"records":1779,"lastAttemptAt":"2026-11-11T14:57:42.7555955+00:00","lastSuccessAt":"2026-11-11T14:57:42.9319568+00:00","error":null,"lastVerifiedAt":"2026-11-11T14:57:42.9319577+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-de3b77103708811b6494d2ff7c979037d73ae579742cd1649a5c765137ae5083-19109df301f45af5f6ac2ef04012c27245f9ad888d1e548bcdb48fe76d9f96e6","complete":true,"records":424146,"lastAttemptAt":"2026-11-11T14:57:42.3158203+00:00","lastSuccessAt":"2026-11-11T14:57:42.1205118+00:00","error":null,"lastVerifiedAt":"2026-11-11T14:57:42.3158203+00:00","snapshotPublishedAt":"2026-11-11T14:27:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-daa70f0e05b540b28ec429806bdccfc4","complete":false,"records":13759,"lastAttemptAt":"2026-11-11T15:09:37.2726122+00:00","lastSuccessAt":"2026-11-11T15:09:37.269+00:00","error":null,"lastVerifiedAt":"2026-11-11T15:09:37.269+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13582,"expectedIdentifiers":13813,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-11T14:57:42.7555955+00:00","complete":true,"records":1097,"lastAttemptAt":"2026-11-11T14:57:42.7555955+00:00","lastSuccessAt":"2026-11-11T14:57:42.9331503+00:00","error":null,"lastVerifiedAt":"2026-11-11T14:57:42.9331505+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-11785b13898646a1917b06b09d2df4a4","complete":true,"records":13753,"lastAttemptAt":"2026-11-11T14:57:44.6046058+00:00","lastSuccessAt":"2026-11-11T13:57:34.909+00:00","error":null,"lastVerifiedAt":"2026-11-11T13:57:34.909+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13813,"expectedIdentifiers":13813,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-3562b6c78fd1bd0f0b55daf66a0926ae24f65e462df7f6d928caad458fc696bf","complete":true,"records":9947,"lastAttemptAt":"2026-11-11T14:57:42.5803744+00:00","lastSuccessAt":"2026-11-11T04:27:43.6877707+00:00","error":null,"lastVerifiedAt":"2026-11-11T14:57:42.5803744+00:00","snapshotPublishedAt":"2026-11-11T03:32:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-456002455e0ab94bb92c95476d4e6d175c104cd594749982afd96c893728ecbc","complete":true,"records":2010,"lastAttemptAt":"2026-11-11T14:57:42.3614093+00:00","lastSuccessAt":"2026-11-11T02:36:58.1276999+00:00","error":null,"lastVerifiedAt":"2026-11-11T14:57:42.3614093+00:00","snapshotPublishedAt":"2026-11-11T01:17:51+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-baa8362b4daf9e5f39d5563775a55935e7b442c0735d33274a921579ce4a0d66","complete":true,"records":3093,"lastAttemptAt":"2026-11-11T14:57:42.6953487+00:00","lastSuccessAt":"2026-11-11T13:00:02.5446881+00:00","error":null,"lastVerifiedAt":"2026-11-11T14:57:42.6953487+00:00","snapshotPublishedAt":"2026-11-11T12:47:47+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-10cb353ca77c2a8069d6892d1d394d936b12c0add3c8749e2a1a03a1c5d50426","complete":true,"records":231666,"lastAttemptAt":"2026-11-11T14:57:42.4738411+00:00","lastSuccessAt":"2026-11-11T12:59:55.8981437+00:00","error":null,"lastVerifiedAt":"2026-11-11T14:57:42.4738411+00:00","snapshotPublishedAt":"2026-11-11T12:32:53+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}