CVE-2026-115720 Frappe Builder before 1.36.1 SSRF Guard Bypass via HTTP Redirect
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-115720?
CVE-2026-115720 is a medium-severity vulnerability in frappe builder, published on 26 Oct 2026.
Official 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.
Weakness: CWE-918
Which versions are affected by CVE-2026-115720?
How do I fix CVE-2026-115720?
No fix has been published for CVE-2026-115720 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-115720 being exploited?
There is no known exploitation of CVE-2026-115720 in the wild and no public exploit code.
Sources
Also known as GHSA-hvrf-fhv3-3v7p.