Vulnerability · Published Aug 30, 2026 · Assigned by VulnCheck
CVE-2026-82634Frappe Framework Development Branch Incorrect Authorization via Jinja Template Preview Endpoint
Medium 6.5
In plain English
A medium-severity incorrect authorization in frappe from frappe. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities).
Official description
Frappe Framework development builds contain an authorization flaw in the render_jinja_template endpoint that allows low-privileged users to render arbitrary Jinja templates by supplying raw template strings. Attackers with print permission on any document can execute arbitrary SELECT statements against unrelated tables, including reading password hashes from the __Auth table.
Affected products (as reported)
Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
References
- Pull Request #40710 issue-tracking, patch
- Patch Commit patch
- https://github.com/frappe/frappe/blob/0a80046da32bb8976cd7854f551c179a4a06b1b3/frappe/utils/print_format_generator.py technical-description
- https://github.com/frappe/frappe product
- VulnCheck Advisory: Frappe Framework Development Branch Incorrect Authorization via Jinja Template Preview Endpoint third-party-advisory