CVE-2026-31017

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.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/PhDg1410/CVE/tree/main/CVE-2026-31017	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:frappe:erpnext:16.0.1:::::::*
	cpe:2.3:a:frappe:frappe:16.1.1:::::::*

History

No history.

Information

Published : 2026-04-08 17:21

Updated : 2026-07-25 10:10

NVD link : CVE-2026-31017

Mitre link : CVE-2026-31017

CVE.ORG link : CVE-2026-31017

JSON object : View

Products Affected

frappe

erpnext
frappe

CWE

CWE-918

Server-Side Request Forgery (SSRF)

{"id": "CVE-2026-31017", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-31017", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-04-09T20:49:37.726087Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 3.9}]}, "affected": [{"source": "cve@mitre.org", "affectedData": [{"vendor": "n/a", "product": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}]}], "published": "2026-04-08T17:21:18.737", "references": [{"url": "https://github.com/PhDg1410/CVE/tree/main/CVE-2026-31017", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-918"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Una vulnerabilidad de falsificaci\u00f3n de petici\u00f3n del lado del servidor (SSRF) existe en la funcionalidad de Formato de Impresi\u00f3n de ERPNext v16.0.1 y Frappe Framework v16.1.1, donde el HTML proporcionado por el usuario no se sanea suficientemente antes de ser renderizado a PDF. Al generar PDFs a partir de contenido HTML controlado por el usuario, la aplicaci\u00f3n permite la inclusi\u00f3n de elementos HTML como <iframe> que referencian recursos externos. El motor de renderizado de PDF recupera autom\u00e1ticamente estos recursos en el lado del servidor. Un atacante puede abusar de este comportamiento para forzar al servidor a realizar peticiones HTTP arbitrarias a servicios internos, incluyendo puntos finales de metadatos en la nube, lo que podr\u00eda llevar a la revelaci\u00f3n de informaci\u00f3n sensible."}], "lastModified": "2026-07-25T10:10:00.167", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:frappe:erpnext:16.0.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3B49FE4D-85A8-44E2-9BF2-E60B7FFBAC81"}, {"criteria": "cpe:2.3:a:frappe:frappe:16.1.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "461D4C6F-5E45-43CA-A47F-D5DDDD083786"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}