CVE-2026-100702
Nodemailer before 10.0.2 Stack Exhaustion via Nested Recipient Arrays
CVSS Score
5.9
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-674 |
| Vendor | nodemailer |
| Product | nodemailer |
| Published | Sep 26, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
nodemailer / nodemailer
0 < 10.0.2
References
Credits
🔍 ry2811