CVE-2026-100702
Nodemailer before 10.0.2 Stack Exhaustion via Nested Recipient Arrays
- State
- Published
- Severity
- 8.2 High
- Published
- Sep 26, 2026
- Updated
- Sep 26, 2026
- Reserved
- Sep 26, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.2 High | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.9 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-674 Uncontrolled Recursion
Affected Products
| Product | Versions |
|---|---|
nodemailernodemailer |
|
References
- GitHub Security Advisory (GHSA-8vvx-rff5-p5rq)vendor-advisory
- VulnCheck Advisory: Nodemailer before 10.0.2 Stack Exhaustion via Nested Recipient Arraysthird-party-advisory
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