CVE-2026-82662

Medium

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.

SeverityMedium

CVSS6.5

Exploit probability—

ProductNodemailer

PublishedAug 31, 2026

First seenAug 31, 2026

Weakness typeCWE-295CWE-295

How to fix

Update

nodemailer8.0.8 or later

Vendor advisories

github.com/nodemailer/nodemailer/security/advisories/GHSA-r7g4-qg5f-qqm2

Affected products

Product	Affected versions	Fixed in
nodemailernpm	v < 8.0.8	8.0.8

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