CVE-2026-121425

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
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
https://github.com/nodemailer/nodemailer/security/advisories/GHSA-m943-m63m-w62w

Configurations

No configuration.

History

03 Nov 2026, 17:18

Type	Values Removed	Values Added
References	~~() https://github.com/nodemailer/nodemailer/security/advisories/GHSA-m943-m63m-w62w -~~	() https://github.com/nodemailer/nodemailer/security/advisories/GHSA-m943-m63m-w62w -

03 Nov 2026, 15:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-11-03 15:17

Updated : 2026-11-03 17:18

NVD link : CVE-2026-121425

Mitre link : CVE-2026-121425

CVE.ORG link : CVE-2026-121425

JSON object : View

Products Affected

No product.

CWE

CWE-20

Improper Input Validation

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