CVE-2026-92598
HIGH
8,3
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
MEDIUM
6,5
Source: [email protected]
Attack Vector: network
Attack Complexity: high
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: low
Availability: none
Description
AI Translation Available
Nodemailer before 9.1.0 fails to apply UTS-46 normalization when encoding international domain names, causing the domain resolver to compute a different Punycode A-label than standards-compliant parsers. Attackers can craft recipient addresses with invisible characters or compatibility mappings that pass domain allow-list checks but are delivered to attacker-controlled domains via SMTP.
436
Interpretation Conflict
IncompleteCommon Consequences
Security Scopes Affected:
Integrity
Other
Potential Impacts:
Unexpected State
Varies By Context
Applicable Platforms
All platforms may be affected
https://github.com/nodemailer/nodemailer/security/advisories/GHSA-wmmp-3585-3rmp
https://github.com/nodemailer/nodemailer/commit/259c32d
https://github.com/nodemailer/nodemailer/commit/b212ac4
https://github.com/nodemailer/nodemailer/security/advisories/GHSA-wmmp-3585-3rmp
https://www.vulncheck.com/advisories/nodemailer-before-9.1.0-idn-punycode-domai…