{"id":"CVE-2026-115720","published":"2026-10-26T12:17:05.787","lastModified":"2026-10-26T20:17:51.163","description":"Frappe Builder before 1.36.1 contains a server-side request forgery vulnerability in builder/api.py where the assert_not_private_url() guard validates only the initial hostname before callers invoke requests.get(url) with default redirect-following and no IP pinning, allowing an attacker-supplied public URL to HTTP-redirect to internal or link-local addresses the guard never validated. An authenticated attacker can call the convert_to_webp endpoint, which lacks a permission decorator, with a URL that redirects to internal targets such as cloud metadata services to perform SSRF, internal port scanning, or trigger a request-hang denial of service due to the missing timeout.","cvssScore":5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","cwes":["CWE-918"],"vendors":[],"products":[],"references":[{"url":"https://github.com/frappe/builder/releases/tag/v1.36.1","tags":[]},{"url":"https://github.com/frappe/builder/security/advisories/GHSA-hvrf-fhv3-3v7p","tags":[]},{"url":"https://www.vulncheck.com/advisories/frappe-builder-before-ssrf-guard-bypass-via-http-redirect","tags":[]}],"exploitRefs":[{"url":"https://github.com/frappe/builder/releases/tag/v1.36.1","tags":[]},{"url":"https://github.com/frappe/builder/security/advisories/GHSA-hvrf-fhv3-3v7p","tags":[]}],"hasPoc":true,"ai":null}