Server-Side Template Injection in ERPNext by Frappe
CVE-2026-38431

9.8CRITICAL

Key Information:

Vendor

Frappe

Status
ERPNext
Vendor
CVE Published:
5 May 2026

What is CVE-2026-38431?

ERPNext versions up to v15.103.1 are susceptible to a Server-Side Template Injection (SSTI) vulnerability. This occurs when an attacker, having the permission to create or modify email templates, can inject malicious template expressions. These expressions are then executed on the server when the email templates are rendered, potentially risking sensitive data and system integrity.

References

https://c0wking.hashnode.dev/ssti-in-erpnext-frappe-email...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.