CVE-2026-82662

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 v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/nodemailer/nodemailer/security/advisories/GHSA-r7g4-qg5f-qqm2
https://www.vulncheck.com/advisories/nodemailer-before-8.0.8-tls-certificate-validation-bypass
https://github.com/nodemailer/nodemailer/security/advisories/GHSA-r7g4-qg5f-qqm2

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-31 09:17

Updated : 2026-09-10 15:48

NVD link : CVE-2026-82662

Mitre link : CVE-2026-82662

CVE.ORG link : CVE-2026-82662

JSON object : View

Products Affected

No product.

CWE

CWE-295

Improper Certificate Validation

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