mise: Arbitrary command execution via task-include files in an untrusted, config-less repository_CVE-2026-55441

{
    "lastseen": "",
    "description": "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/, \u2026) but no config file, mise falls back to the default includes and renders each task's tera fields \u2014 and that tera environment has exec() registered. A {{ exec(command='\u2026') }} 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": "2026-06-26T18:41:26.486Z",
    "type": "cve",
    "title": "mise: Arbitrary command execution via task-include files in an untrusted, config-less repository",
    "source": "GitHub_M",
    "references": "https://github.com/jdx/mise/security/advisories/GHSA-77g9-363w-rccq",
    "id": "CVE-2026-55441",
    "bulletinFamily": "",
    "cwe": [
        "CWE-78",
        "CWE-94",
        "CWE-732"
    ],
    "cvelist": null,
    "sourceData": "jdx mise < 2026.6.4",
    "sourceHref": "",
    "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",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
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            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "mise",
    "version": "< 2026.6.4",
    "vendor": "jdx",
    "ai_description": "Arbitrary command execution via task-include files in an untrusted, config-less repository",
    "ai_severity": "High",
    "ai_vendor": "jdx",
    "ai_product": "mise",
    "ai_version": "< 2026.6.4",
    "ai_score": 8.6
}