---
id: CVE-2026-115717
title: Frappe Builder before 1.36.1 SSRF via convert_to_webp
summary: >-
  Frappe Builder versions before 1.36.1 contain a server-side request forgery
  vulnerability in the convert_to_webp API endpoint, which lacks the
  has_page_write access control applied to similar asset-ingest handlers and
  performs an unprote…
severity: high
cvss: 7.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-918
vendor: frappe
product: builder
affected:
  - builder >= 1.0.0 < 1.36.1
published: '2026-10-26'
updated: '2026-10-26'
sourceUpdated: '2026-10-26T11:43:59.635Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-115717'
references:
  - url: 'https://github.com/frappe/builder/releases/tag/v1.36.1'
    label: Vendor Patch
  - url: 'https://github.com/frappe/builder/security/advisories/GHSA-5qcg-q3jf-fjcg'
    label: Vendor Advisory
  - url: >-
      https://www.vulncheck.com/advisories/frappe-builder-before-ssrf-via-convert-to-webp
    label: 'VulnCheck Advisory: Frappe Builder before 1.36.1 SSRF via convert_to_webp'
tags:
  - cve.org
ingestedAt: '2026-10-26T12:26:18.480Z'
---

## Overview

Frappe Builder versions before 1.36.1 contain a server-side request forgery vulnerability in the convert_to_webp API endpoint, which lacks the has_page_write access control applied to similar asset-ingest handlers and performs an unprotected requests.get call that follows redirects without re-validating resolved IP addresses. A low-privilege authenticated user can supply an image_url pointing to an internal address or use DNS rebinding and open redirects to make the server fetch internal network resources or cloud metadata endpoints, with successful image responses saved to a world-readable /files/ URL enabling data exfiltration or blind probing of internal hosts.

## Affected

- `builder >= 1.0.0 < 1.36.1`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.