CVE-2026-121426 (GCVE-0-2026-121426)
Vulnerability from cvelistv5 – Published: 2026-11-03 14:28 – Updated: 2026-11-07 02:58
VLAI
EPSS
VEX
Title
Nodemailer 3.0.0 before 10.1.4 Recipient Domain Confusion via addressparser
Summary
Nodemailer from 3.0.0 before 10.1.4 contains an address parsing vulnerability in addressparser that ends an angle-addr at a '>' inside a quoted local part, comment or domain literal. Attackers can submit addresses that validate as an allowed domain but are delivered to an attacker-controlled domain, bypassing recipient allow lists and disclosing message content.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-07 02:57 UTC
CWE
- CWE-20 - Improper Input Validation
Assigner
VulnCheck
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/nodemailer/nodemailer/security… | vendor-advisory |
| https://www.vulncheck.com/advisories/nodemailer-3… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| nodemailer | nodemailer |
Affected:
3.0.0 , < 10.1.4
(semver)
Unaffected: 10.1.4 (semver) cpe:2.3:a:nodemailer:nodemailer:*:*:*:*:*:*:*:* |
Date Public
2026-10-19 00:00
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Nomenclature
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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