RustFS has IAM Incorrect Authorization in ImportIam that Allows Privilege Escalation_CVE-2026-22042

{
    "lastseen": "",
    "description": "RustFS is a distributed object storage system built in Rust. Prior to version 1.0.0-alpha.79, he `ImportIam` admin API validates permissions using `ExportIAMAction` instead of `ImportIAMAction`, allowing a principal with export-only IAM permissions to perform import operations. Since importing IAM data performs privileged write actions (creating/updating users, groups, policies, and service accounts), this can lead to unauthorized IAM modification and privilege escalation. Version 1.0.0-alpha.79 fixes the issue.",
    "published": "2026-01-08T14:58:10.785Z",
    "modified": "2026-01-08T15:54:51.896Z",
    "type": "cve",
    "title": "RustFS has IAM Incorrect Authorization in ImportIam that Allows Privilege Escalation",
    "source": "GitHub_M",
    "references": "https://github.com/rustfs/rustfs/security/advisories/GHSA-vcwh-pff9-64cc",
    "id": "CVE-2026-22042",
    "bulletinFamily": "",
    "cwe": [
        "CWE-285",
        "CWE-863"
    ],
    "cvelist": null,
    "sourceData": "rustfs rustfs < 1.0.0-alpha.79",
    "sourceHref": "",
    "cvss": {
        "score": 5.7,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "rustfs",
    "version": "< 1.0.0-alpha.79",
    "vendor": "rustfs",
    "ai_description": "",
    "ai_severity": "",
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    "ai_score": 0
}