SB2026093099 - Server-Side Request Forgery (SSRF) in nodemailer



SB2026093099 - Server-Side Request Forgery (SSRF) in nodemailer

Published: September 30, 2026 Updated: October 1, 2026

Security Bulletin ID SB2026093099
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2026-92595)

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

CVSSv4: 6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote user to disclose arbitrary local files and perform server-side request forgery.

The vulnerability exists due to improper access control in the MailMessage.resolveContent() public API when resolving attacker-influenced message content through the legacy signature. A remote user can supply message content that references local file paths or internal URLs to disclose arbitrary local files and perform server-side request forgery.

The issue is reachable when disableFileAccess or disableUrlAccess is enabled and application code or a plugin invokes the documented legacy API without an options argument.


Remediation

Install update from vendor's website.