Arcane has a Command Injection in Arcane Updater Lifecycle Labels Enables RCE_CVE-2026-23520

{
    "lastseen": "",
    "description": "Arcane provides modern docker management. Prior to 1.13.0, Arcane has a command injection in the updater service. Arcane\u2019s updater service supported lifecycle labels com.getarcaneapp.arcane.lifecycle.pre-update and com.getarcaneapp.arcane.lifecycle.post-update that allowed defining a command to run before or after a container update. The label value is passed directly to /bin/sh -c without sanitization or validation. Because any authenticated user (not limited to administrators) can create projects through the API, an attacker can create a project that specifies one of these lifecycle labels with a malicious command. When an administrator later triggers a container update (either manually or via scheduled update checks), Arcane reads the lifecycle label and executes its value as a shell command inside the container. This vulnerability is fixed in 1.13.0.",
    "published": "2026-01-15T19:20:22.434Z",
    "modified": "2026-01-15T19:58:45.182Z",
    "type": "cve",
    "title": "Arcane has a Command Injection in Arcane Updater Lifecycle Labels Enables RCE",
    "source": "GitHub_M",
    "references": "https://github.com/getarcaneapp/arcane/security/advisories/GHSA-gjqq-6r35-w3r8\nhttps://github.com/getarcaneapp/arcane/pull/1468\nhttps://github.com/getarcaneapp/arcane/commit/5a9c2f92e11f86f8997da8c672844468f930b7e4\nhttps://github.com/getarcaneapp/arcane/releases/tag/v1.13.0",
    "id": "CVE-2026-23520",
    "bulletinFamily": "",
    "cwe": [
        "CWE-78"
    ],
    "cvelist": null,
    "sourceData": "getarcaneapp arcane < 1.13.0",
    "sourceHref": "",
    "cvss": {
        "score": 9.1,
        "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": "arcane",
    "version": "< 1.13.0",
    "vendor": "getarcaneapp",
    "ai_description": "Command injection vulnerability in Arcane's updater service allows remote code execution",
    "ai_severity": "Critical",
    "ai_vendor": "getarcaneapp",
    "ai_product": "Arcane",
    "ai_version": "< 1.13.0",
    "ai_score": 9.1
}