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    CVE-2024-58379

    nodemailer before 6.9.9 contains a regular expression denial of service vulnerability in email parsing when attachDataUrls parameter is set or processing embedded file attachments. Attackers can send specially crafted emails with malicious data URLs or embedded attachments to cause the event loop to hang and deny service.

    Published:Aug 31, 2026
    Last Modified:Aug 31, 2026
    EPS:Aug 31, 2026
    EPSS Score:0.00304
    CVSS Score:5.3

    Affected Products

    Vendor
    Nodemailer
    Product
    Nodemailer

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-492 Regular Expression Exponential Blowup

    Related CVEs

    CVE-2026-82854 (CVSS 9.3) — Nodemailer before 8.0.4 is vulnerable to SMTP command injection through the unsanitized envelope.size paramete…
    CVE-2026-82853 (CVSS 6.9) — Nodemailer versions before 8.0.5 contain an SMTP command injection vulnerability in the transport name option …
    CVE-2026-82662 (CVSS 8.3) — Nodemailer before 8.0.8 disables TLS certificate verification in lib/fetch/index.js through rejectUnauthorized…
    CVE-2026-82661 (CVSS 5.3) — Nodemailer before 8.0.9 fails to sanitize carriage return and line feed characters in list comment fields, all…
    CVE-2026-82660 (CVSS 5.3) — Nodemailer before 8.0.9 fails to enforce disableFileAccess and disableUrlAccess options during message normali…
    CVE-2026-82659 (CVSS 7.1) — nodemailer before 9.0.1 fails to apply disableFileAccess and disableUrlAccess flags to message-level raw optio…
    CVE-2025-14874 (CVSS 7.5) — A flaw was found in Nodemailer. This vulnerability allows a denial of service (DoS) via a crafted email addres…
    CVE-2021-23400 (CVSS 6.3) — The package nodemailer before 6.6.1 are vulnerable to HTTP Header Injection if unsanitized user input that may…
    CVE-2020-7769 (CVSS 8.6) — This affects the package nodemailer before 6.4.16. Use of crafted recipient email addresses may result in arbi…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High