Dokku: OS Command Injection via App Name in Git Pre-Receive Hook_CVE-2026-45408

{
    "lastseen": "",
    "description": "Dokku is a docker-powered PaaS. Prior to 0.38.2, the app name validation regex (^[a-z0-9][^/:_A-Z]*$) permits shell metacharacters. When an authenticated user pushes to a git remote with a crafted app name, the name is embedded unquoted into a bash pre-receive hook script via an unquoted heredoc (<<EOF instead of <<'EOF') in fn-git-create-hook() at plugins/git/internal-functions:378. On git push, bash interprets the semicolon as a command separator, executing arbitrary commands as the dokku user. This vulnerability is fixed in 0.38.2.",
    "published": "2026-06-26T16:19:56.118Z",
    "modified": "2026-06-26T16:19:56.118Z",
    "type": "cve",
    "title": "Dokku: OS Command Injection via App Name in Git Pre-Receive Hook",
    "source": "GitHub_M",
    "references": "https://github.com/dokku/dokku/security/advisories/GHSA-9x85-7gxq-fcr3\nhttps://github.com/dokku/dokku/pull/8590",
    "id": "CVE-2026-45408",
    "bulletinFamily": "",
    "cwe": [
        "CWE-78"
    ],
    "cvelist": null,
    "sourceData": "dokku dokku < 0.38.2",
    "sourceHref": "",
    "cvss": {
        "score": 9,
        "severity": "CRITICAL",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:L/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": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "dokku",
    "version": "< 0.38.2",
    "vendor": "dokku",
    "ai_description": "OS Command Injection via App Name in Git Pre-Receive Hook",
    "ai_severity": "Critical",
    "ai_vendor": "Dokku",
    "ai_product": "Dokku",
    "ai_version": "< 0.38.2",
    "ai_score": 9
}