Auth bypass in Frappe
CVE-2026-82634
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (34.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002
Affected products
Weakness classification (CWE)
References
- github.com/frappe/frappe/pull/40710 (issue-tracking, patch)
- github.com/frappe/frappe/commit/37d2eb59790633da01c741b950cc00ca3558c494 (patch)
- github.com/frappe/frappe/blob/0a80046da32bb8976cd7854f551c179a4a06b1b3/frappe/u… (technical-description)
- github.com/frappe/frappe (product)
- www.vulncheck.com/advisories/frappe-framework-development-branch-incorrect-auth… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-82634?
- CVE-2026-82634 is a medium-severity vulnerability in Frappe, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2026-08-30.
- How severe is CVE-2026-82634?
- Medium severity. CVSS v3 base score is 6.5 out of 10.