CVE-2026-115717
CVE-2026-115717
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Weakness classification (CWE)
References
- github.com/frappe/builder/releases/tag/v1.36.1 (patch)
- github.com/frappe/builder/security/advisories/GHSA-5qcg-q3jf-fjcg (vendor-advisory)
- www.vulncheck.com/advisories/frappe-builder-before-ssrf-via-convert-to-webp (third-party-advisory)
Frequently asked questions
- What is CVE-2026-115717?
- CVE-2026-115717 is a high-severity vulnerability, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.7/10. Published 2026-10-26.
- How severe is CVE-2026-115717?
- High severity. CVSS v3 base score is 7.7 out of 10.