CVE-2026-82662
Nodemailer before 8.0.8 TLS Certificate Validation Bypass
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
Nodemailer before 8.0.8 disables TLS certificate verification in lib/fetch/index.js through rejectUnauthorized: false, allowing attackers to intercept OAuth2 token requests. Attackers in a machine-in-the-middle position can capture OAuth client secrets, refresh tokens, and access tokens transmitted over compromised HTTPS connections.
| CWE | CWE-295 |
| Vendor | nodemailer |
| Product | nodemailer |
| Published | Aug 31, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None
Affected Versions
nodemailer / nodemailer
0 < 8.0.8
References
Credits
🔍 Venukamatchi