# CVE-2026-109660: Frappe ERPNext authorization bypass in production record endpoints

Source: https://junglewise.ai/threats/cve-2026-109660-frappe-erpnext-before-15-112-0-and-16-x-before-16-23-0-has  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-12. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-109660 · Severity: medium · CVSS 6.5 · Published 2026-10-12

Frappe ERPNext is an open-source enterprise resource planning (ERP) system used to manage business operations and customer relations. Certain API endpoints in ERPNext fail to enforce proper permission checks, allowing any authenticated user with minimal privileges to modify critical production data that their role should not permit. An attacker with even a basic user account could alter inventory, orders, or manufacturing records, leading to data corruption and business disruption.

Technologies: [Frappe ERPNext](https://junglewise.ai/threats/technologies/erpnext). Vendors: [Frappe](https://junglewise.ai/threats/vendors/frappe).

## Quick answers

**Is CVE-2026-109660 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-109660 being exploited in the wild.

**How severe is CVE-2026-109660?** Medium severity, with a CVSS score of 6.5, published 12 October 2026.

**Which products and versions are affected?** Frappe ERPNext before 15.112.0; 16.x before 16.23.0.

**Is there a fix for CVE-2026-109660?** Yes: fixed in ERPNext 15.112.0, 16.23.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-109660 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-109660?** Check whether you run Frappe ERPNext at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in ERPNext 15.112.0, 16.23.0

## Technical details

Missing authorization checks (CWE-862) in specific ERPNext endpoints allow authenticated low-privileged users to modify production records beyond their assigned role permissions. The vulnerability requires network access and valid authentication credentials but no user interaction; it affects data integrity with a CVSS v3 base score of 6.5 (network attack vector, low privileges required, high integrity impact). Fixes are available in ERPNext 15.112.0 and 16.23.0.

## Affected products

- Frappe ERPNext before 15.112.0; 16.x before 16.23.0

## Timeline

- 2026-08-13: disclosed
- 2026-10-12: advisory

## References

- [https://github.com/frappe/erpnext/security/advisories/GHSA-fmr9-rm6j-cfpq](https://github.com/frappe/erpnext/security/advisories/GHSA-fmr9-rm6j-cfpq)
- [https://www.vulncheck.com/advisories/frappe-erpnext-before-15.112.0-missing-authorization-in-production-record-endpoints](https://www.vulncheck.com/advisories/frappe-erpnext-before-15.112.0-missing-authorization-in-production-record-endpoints)

## Related threats

- [Frappe ERPNext missing authorization in buying utilities](https://junglewise.ai/threats/cve-2026-124316-frappe-erpnext-before-15-121-4-and-16-x-before-16-36-0-contains)
- [Frappe ERPNext missing authorization in BOM methods](https://junglewise.ai/threats/cve-2026-124315-frappe-erpnext-before-15-121-4-and-16-x-before-16-36-0-contains)
- [Frappe ERPNext missing authorization in CRM activities](https://junglewise.ai/threats/cve-2026-124314-frappe-erpnext-before-15-121-4-and-16-x-before-16-36-0-contains)
- [Frappe ERPNext missing authorization in get_linked_payments](https://junglewise.ai/threats/cve-2026-124313-frappe-erpnext-before-15-121-4-and-16-x-before-16-36-0-contains)
- [ERPNext authorization bypass in status modification endpoints](https://junglewise.ai/threats/cve-2026-108374-erpnext-is-a-free-and-open-source-enterprise-resource-planning)