SB2026093099 - Server-Side Request Forgery (SSRF) in nodemailer
Published: September 30, 2026 Updated: October 1, 2026
Breakdown by Severity
- 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.