Auth bypass in Frappe

CVE-2026-66058

Frappe is a full-stack web application framework. Prior to 16.20.0 and 15.112.0, unrestricted access to a Document Follow API (update_follow) is possible for an authenticated user. This issue is fixed in versions 16.20.0 and 15.112.0.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Affected products

  • Frappe — versions >= 16.0.0-beta.1, < 16.20.0, < 15.112.0

Weakness classification (CWE)

References