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Advisories

Nodemailer before 8.0.8 TLS Certificate Validation Bypass

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severity
high
date
Affecting

  • nodemailer >= 0, < 8.0.8

CWE
  • CWE-295 Improper Certificate Validation
CVSS
8.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Credit
Venukamatchi
Description
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.

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