CVE-2026-31017
CriticalCVSS 9.1Exploitation Probability (EPSS)
Low risk15th percentile - higher than 15% of all known CVEs
Summary
A Server-Side Request Forgery (SSRF) vulnerability was found in the Print Format functionality of ERPNext v16.0.1 and Frappe Framework v16.1.1. Insufficient sanitization of user-supplied HTML allows embedding elements like <iframe> that are fetched server-side. An attacker can force the server to make arbitrary HTTP requests to internal services, including cloud metadata endpoints, potentially leading to sensitive information disclosure.
Risk Assessment
The risk involves potential disclosure of sensitive data from internal systems, such as cloud access keys or network configurations, by forcing the server to send requests to unauthorized resources.
Recommendation
Immediately update ERPNext and Frappe Framework to the latest patched versions. As a temporary measure, restrict access to the PDF generation feature and implement server-side HTML filtering.
Other vulnerabilities in ERPNext
See all- CVE-2026-44447High
ERPNext is a free and open source Enterprise Resource Planning tool. Prior to version 16.9.0, some endpoints were vulnerable to SQL injection, allowing a malicious actor to extract sensitive information.
- CVE-2026-44446High
ERPNext is a free and open source Enterprise Resource Planning tool. Prior to versions 15.104.3 and 16.14.0, some endpoints were vulnerable to SQL injection, allowing a malicious actor to extract sensitive information.
- CVE-2018-3885High
An exploitable SQL injection vulnerability exists in the authenticated part of ERPNext v10.1.6. Specially crafted web requests can cause SQL injections resulting in data compromise through the order_by parameter.
- CVE-2018-3884High
An exploitable SQL injection vulnerability exists in the authenticated part of ERPNext v10.1.6. Specially crafted web requests can cause SQL injections resulting in data compromise.
- CVE-2018-3883High
An SQL injection vulnerability exists in the authenticated part of ERPNext v10.1.6. Specially crafted web requests can lead to data compromise through SQL injection attacks.
- CVE-2018-3882High
An exploitable SQL injection vulnerability exists in the authenticated part of ERPNext v10.1.6. Specially crafted web requests can cause SQL injections resulting in data compromise.
- CVE-2026-65974Critical
ERPNext is a free and open source Enterprise Resource Planning tool. Prior to 15.111.0 and 16.22.0, limited authenticated users can cross a permission boundary in Frappe safe execution because frappe.render_template is exposed without forcing restrict_globals, allowing server-side template injection and remote code execution. This issue is fixed in versions 15.111.0 and 16.22.0.
- CVE-2026-72911Critical
ERPNext prior to versions 15.118.0 and 16.29.0 contains a vulnerability in unsafe template rendering in the statement of accounts process. An authenticated user with a common operational role can inject template expressions, execute arbitrary server-side code, and read data across the application.
- CVE-2026-44442Critical
ERPNext is a free and open source Enterprise Resource Planning tool. Prior to version 16.9.1, certain endpoints failed to enforce proper authorization checks, allowing users to modify data beyond their permitted role.
- CVE-2026-38431Critical
ERPNext v15.103.1 and earlier is vulnerable to Server-Side Template Injection (SSTI). Users with permission to create or edit email templates can inject template expressions executed on the server during rendering.
Original NVD description (English source)
A Server-Side Request Forgery (SSRF) vulnerability exists in the Print Format functionality of ERPNext v16.0.1 and Frappe Framework v16.1.1, where user-supplied HTML is insufficiently sanitized before being rendered into PDF. When generating PDFs from user-controlled HTML content, the application allows the inclusion of HTML elements such as <iframe> that reference external resources. The PDF rendering engine automatically fetches these resources on the server side. An attacker can abuse this behavior to force the server to make arbitrary HTTP requests to internal services, including cloud metadata endpoints, potentially leading to sensitive information disclosure.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS