RustFS: ImportIam Allows Creation of Backdoor Service Accounts Under Any Parent Including Root_CVE-2026-45043

{
    "lastseen": "",
    "description": "RustFS is a distributed object storage system built in Rust. Prior to 1.0.0-beta.2, improper validation in the PUT /rustfs/admin/v3/import-iam endpoint allows a user with ImportIAMAction to create service accounts under arbitrary parent identities, including the root user (minioadmin). The endpoint accepts attacker-controlled parent, claims, accessKey, and secretKey values without enforcing privilege boundaries or sanitization. This enables privilege escalation to full administrative access using a persistent, attacker-defined credential. This vulnerability is fixed in 1.0.0-beta.2.",
    "published": "2026-05-29T12:25:08.665Z",
    "modified": "2026-05-29T12:25:08.665Z",
    "type": "cve",
    "title": "RustFS: ImportIam Allows Creation of Backdoor Service Accounts Under Any Parent Including Root",
    "source": "GitHub_M",
    "references": "https://github.com/rustfs/rustfs/security/advisories/GHSA-566f-q62r-wcr8",
    "id": "CVE-2026-45043",
    "bulletinFamily": "",
    "cwe": [
        "CWE-269",
        "CWE-284"
    ],
    "cvelist": null,
    "sourceData": "rustfs rustfs < 1.0.0-beta.2",
    "sourceHref": "",
    "cvss": {
        "score": 9.3,
        "severity": "CRITICAL",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N",
        "version": "4.0"
    },
    "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": "rustfs",
    "version": "< 1.0.0-beta.2",
    "vendor": "rustfs",
    "ai_description": "Privilege escalation vulnerability in RustFS due to improper validation in the PUT /rustfs/admin/v3/import-iam endpoint, allowing creation of service accounts under arbitrary parent identities.",
    "ai_severity": "Critical",
    "ai_vendor": "RustFS",
    "ai_product": "RustFS",
    "ai_version": "< 1.0.0-beta.2",
    "ai_score": 9.3
}