Net::IMAP: Command Injection via ID command argument_CVE-2026-47242

{
    "lastseen": "",
    "description": "Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to 0.6.5 and 0.5.15, when Net::IMAP#id is called with a hash argument, although the ID field value strings are correctly quoted (escaping quoted specials), they were not validated to prohibit CRLF sequences. While Net::IMAP#enable does process its arguments for aliases, it does not validate them as valid atoms (or as a list of valid atoms). The #to_s value is sent verbatim. Arguments to either command could be used by an attacker to inject arbitrary IMAP commands. This vulnerability is fixed in 0.6.5 and 0.5.15.",
    "published": "2026-06-22T20:19:41.222Z",
    "modified": "2026-06-22T20:19:41.222Z",
    "type": "cve",
    "title": "Net::IMAP: Command Injection via ID command argument",
    "source": "GitHub_M",
    "references": "https://github.com/ruby/net-imap/security/advisories/GHSA-46q3-7gv7-qmgg",
    "id": "CVE-2026-47242",
    "bulletinFamily": "",
    "cwe": [
        "CWE-77",
        "CWE-93"
    ],
    "cvelist": null,
    "sourceData": "ruby net-imap >= 0.6.0, < 0.6.4.1\nruby net-imap < 0.5.15",
    "sourceHref": "",
    "cvss": {
        "score": 5.8,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
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        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
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            "baseScore": 0,
            "baseSeverity": "",
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "net-imap",
    "version": ">= 0.6.0, < 0.6.4.1",
    "vendor": "ruby",
    "ai_description": "",
    "ai_severity": "",
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    "ai_product": "",
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    "ai_score": 0
}