mise: Local credential_command executes untrusted config_CVE-2026-55448

6.3 / 10

MEDIUM

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Description

mise manages dev tools like node, python, cmake, and terraform. From 2026.3.15 until 2026.6.4, mise loads github.credential_command from local project config before any trust decision, then executes that value with sh -c when resolving a GitHub token. An attacker who can place a .mise.toml in a repository can execute arbitrary shell commands when the victim runs a GitHub-related mise command and no higher-priority GitHub token environment variable is set. This vulnerability is fixed in 2026.6.4.

Basic Information

ID CVE-2026-55448

Source GitHub_M

Published Jun 26, 2026 at 16:46

Affected Product

Vendor jdx

Product mise

Version < 2026.6.4

Affected Versions jdx mise < 2026.6.4

CWE Classification

CWE-78

References

github.com /jdx/mise/security/advisories/GHSA-29hf-rm4x-xxph

{
    "lastseen": "",
    "description": "mise manages dev tools like node, python, cmake, and terraform. From 2026.3.15 until 2026.6.4, mise loads github.credential_command from local project config before any trust decision, then executes that value with sh -c when resolving a GitHub token. An attacker who can place a .mise.toml in a repository can execute arbitrary shell commands when the victim runs a GitHub-related mise command and no higher-priority GitHub token environment variable is set. This vulnerability is fixed in 2026.6.4.",
    "published": "2026-06-26T16:46:17.280Z",
    "modified": "2026-06-26T16:46:17.280Z",
    "type": "cve",
    "title": "mise: Local credential_command executes untrusted config",
    "source": "GitHub_M",
    "references": "https://github.com/jdx/mise/security/advisories/GHSA-29hf-rm4x-xxph",
    "id": "CVE-2026-55448",
    "bulletinFamily": "",
    "cwe": [
        "CWE-78"
    ],
    "cvelist": null,
    "sourceData": "jdx mise < 2026.6.4",
    "sourceHref": "",
    "cvss": {
        "score": 6.3,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N",
        "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": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "mise",
    "version": "< 2026.6.4",
    "vendor": "jdx",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}