CVE-2026-121426
Last modified
CVE-2026-121426 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 0.22% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| nodemailer | nodemailer | >= 3.0.0, < 10.1.4 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-121426?
How severe is CVE-2026-121426?
How do I fix CVE-2026-121426?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-121420SurrealDB from 3.2.0 before 3.3.0 contains a server-side req…3.3
- CVE-2026-121421SurrealDB 3.1.0 before 3.3.0 contains a server-side request …4.3
- CVE-2026-121422SurrealDB from 3.1.0 before 3.3.0 contains a server-side req…4.1
- CVE-2026-121423SurrealDB before 3.3.0 contains an unbounded recursion vulne…6.5
- CVE-2026-121424Nodemailer from 3.0.0 before 10.1.4 contains an address pars…6.5
- CVE-2026-121425Nodemailer from 3.0.0 before 10.1.4 contains a parsing flaw …6.5
- CVE-2026-121427AzuraCast through 0.23.8 fails to remove frontend_config.cus…7.5
- CVE-2026-121428AzuraCast through 0.23.8 contains a remote code execution vu…8.8
- CVE-2026-121429AzuraCast through 0.23.8 contains a command injection vulner…8.8
- CVE-2026-12143form-data is a library for creating readable multipart/form-…7.5
- CVE-2026-121430AzuraCast before 0.24.0 contains a missing authorization vul…5.4
- CVE-2026-121431AzuraCast before 0.24.0 contains a server-side request forge…5.3
Are you affected by CVE-2026-121426?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST