CVE-2026-125755
Nodemailer 3.0.0 before 10.4.1 Recipient Allow-List Bypass via addressparser
Description
Nodemailer 3.0.0 before 10.4.1 contains an address parsing flaw in addressparser that truncates domains at folding whitespace or comments before a dot, allowing attackers to bypass recipient domain restrictions. Attackers can submit crafted to, cc, bcc or replyTo addresses that pass RFC 5322 domain checks but deliver mail to an attacker-chosen address under the application's sender identity.
INFO
Published Date :
Nov. 10, 2026, 3:22 p.m.
Last Modified :
Nov. 10, 2026, 3:22 p.m.
Remotely Exploit :
Yes !
Source :
VulnCheck
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 |
Solution
- Update Nodemailer to version 10.4.1 or later.
- Validate recipient email addresses thoroughly.
- Implement strict sender identity checks.
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CVE-2026-125755 vulnerability anywhere in the article.