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        "name": "Improper Validation of Syntactic Correctness of Input"
      },
      "discovery_date": "2026-09-22T15:47:46.326982+00:00",
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        {
          "category": "description",
          "text": "A flaw was found in Nodemailer. This vulnerability allows a remote attacker to bypass email domain validation due to incorrect parsing of RFC 5322 comments in email addresses. Specifically, a malformed comment can cause Nodemailer to misinterpret the recipient's domain, leading to the delivery of emails to an attacker-controlled domain. This could result in unintended information disclosure or other security impacts.",
          "title": "Vulnerability description"
        },
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          "text": "nodemailer: Nodemailer: Email domain validation bypass via RFC 5322 comment mis-parsing",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Moderate: This flaw in Nodemailer's email address parser can lead to a domain validation bypass. Applications within Red Hat products that utilize Nodemailer for email handling and perform domain validation using a strict RFC 5322 parser without inspecting parse defects, or a naive prefix/substring allow-list, could be induced to deliver emails to an attacker-controlled domain. Exploitation relies on a discrepancy between the application's validation and Nodemailer's parsing of RFC 5322 comments.",
          "title": "Statement"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
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          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-92597",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-92597"
        },
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          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-92597",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-92597"
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          "summary": "https://github.com/nodemailer/nodemailer/commit/902b63e",
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      "release_date": "2026-09-16T21:47:01.599000+00:00",
      "remediations": [
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          "details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.",
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            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N",
            "version": "3.1"
          },
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      "title": "nodemailer: Nodemailer: Email domain validation bypass via RFC 5322 comment mis-parsing"
    }
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}