CVE-2026-100702
MEDIUM
NVD
CVSS Score
5.9
Severity
MEDIUM
Published
Sep 26, 2026
Vendor
unknown
Description
Nodemailer before 10.0.2 fails to properly flatten deeply nested arrays in recipient fields such as to, cc, and bcc, allowing attackers to cause stack exhaustion. Attackers can supply a deeply nested JSON recipient array that triggers recursive Array.toString() conversion, exhausting the call stack and terminating the Node.js process.