File Access Bypass in Nodemailer by Nodemailer Inc.
CVE-2026-82660

5.3MEDIUM

Key Information:

Vendor

Nodemailer

Status
Nodemailer
Vendor
CVE Published:
31 August 2026

What is CVE-2026-82660?

Nodemailer prior to version 8.0.9 fails to properly enforce the disableFileAccess and disableUrlAccess options when normalizing messages in jsonTransport. This oversight permits attackers to read local files and retrieve remote content by injecting path or href values into message content fields, circumventing the expected access restrictions. It's crucial for users to upgrade to the latest version to mitigate this risk and ensure secure operations.

Affected Version(s)

nodemailer 0 < 8.0.9

nodemailer 8.0.9

References

https://github.com/nodemailer/nodemailer/security/advisor...
vendor-advisory
https://www.vulncheck.com/advisories/nodemailer-jsontrans...
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

sondt99
dungNHVhust
.