UBUNTU-CVE-2026-121425

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    UBUNTU-CVE-2026-121425

    Published: 3 Nov 2026Last Modified: 5 Nov 2026
    Upstream:
    CVE-2026-121425

    Summary:

    Details: Nodemailer from 3.0.0 before 10.1.4 contains a parsing flaw in addressparser that ends an RFC 5322 group at a semicolon inside quoted display names or comments. Attackers can submit crafted group addresses that conformant validators approve, redirecting mail to attacker-chosen recipients and bypassing recipient allow lists.

    References: https://ubuntu.com/security/CVE-2026-121425, https://www.cve.org/CVERecord?id=CVE-2026-121425, https://github.com/nodemailer/nodemailer/security/advisories/GHSA-m943-m63m-w62w, https://www.vulncheck.com/advisories/nodemailer-3.0.0-before-10.1.4-recipient-injection-via-addressparser-group-parsing

    Affected packages

    Package

    Name: node-nodemailer

    Purl: pkg:deb/ubuntu/node-nodemailer?arch=source&distro=focal

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    6.3.0-2
    6.3.1-1

    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
    UBUNTU-CVE-2026-121425 | CVE-DB