Improper Certificate Validation Affecting node-nodemailer package, versions *


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.12% (3rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ECHOLATEST-NODENODEMAILER-19477147
  • published1 Sept 2026
  • disclosed31 Aug 2026

Introduced: 31 Aug 2026

NewCVE-2026-82662  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest node-nodemailer.

NVD Description

Note: Versions mentioned in the description apply only to the upstream node-nodemailer package and not the node-nodemailer package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1