{"id":"CVE-2026-55441","aliases":["GHSA-77g9-363w-rccq"],"url":"https://o3.security/vulnerability/CVE-2026-55441","summary":"mise: Arbitrary command execution via task-include files in an untrusted, config-less repository","details":"mise manages dev tools like node, python, cmake, and terraform. Prior to 2026.6.4, mise's trust feature gates config files (mise.toml, .tool-versions) through trust_check, but task-include files are loaded on a path that never reaches it. When a directory has a task-include dir (mise-tasks/, .mise/tasks/, …) but no config file, mise falls back to the default includes and renders each task's tera fields — and that tera environment has exec() registered. A {{ exec(command='…') }} in any rendered field runs arbitrary commands the moment the tasks are merely listed. There's no config file to gate on, so no trust prompt ever appears. Read-only commands trigger it: mise tasks, mise task ls, mise run, mise tasks --usage (the query shell completion runs on Tab). The victim only has to cd into a cloned repo and list or tab-complete a task. This vulnerability is fixed in 2026.6.4.","published":"2026-06-26T16:48:23.194Z","modified":"2026-08-12T03:51:16.318968164Z","cvss":{"score":8.6,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H"},"epss":{"score":0.00128,"percentile":0.02817,"asOf":"2026-08-11"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"crates.io","name":"mise","fixedVersion":"2026.6.4"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55441.json"},{"type":"ADVISORY","url":"https://github.com/jdx/mise/security/advisories/GHSA-77g9-363w-rccq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55441"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:16.318968164Z"}}