# CVE-2026-109664: Frappe ERPNext missing authorization in record modification

Source: https://junglewise.ai/threats/cve-2026-109664-frappe-erpnext-before-15-112-0-contains-a-missing-authorization  
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-2026-109664 · Severity: medium · CVSS 4.3 · Published 2026-10-12

Frappe ERPNext is an open-source enterprise resource planning system used to manage business operations and customer relations. A missing authorization check allows authenticated users with a common operational role to modify records they should not have access to, enabling unauthorized data tampering across the system.

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

## Quick answers

**Is CVE-2026-109664 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-109664 being exploited in the wild.

**How severe is CVE-2026-109664?** Medium severity, with a CVSS score of 4.3, published 12 October 2026.

**Which products and versions are affected?** Frappe ERPNext before 15.112.0.

**Is there a fix for CVE-2026-109664?** Yes: fixed in 15.112.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-109664 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-109664?** 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 15.112.0

## Technical details

The vulnerability stems from missing authorization validation in certain API endpoints (CWE-862). An authenticated attacker with a common operational role can invoke affected endpoints to modify fields on record types outside their assigned permissions. No user interaction or elevated privileges are required beyond initial authentication; the issue affects version 15 of ERPNext, while version 16 was addressed separately under CVE-2026-44442.

## Affected products

- Frappe ERPNext before 15.112.0

## Timeline

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

## References

- [https://github.com/frappe/erpnext/security/advisories/GHSA-f7x9-qfrf-92m8](https://github.com/frappe/erpnext/security/advisories/GHSA-f7x9-qfrf-92m8)
- [https://www.vulncheck.com/advisories/frappe-erpnext-before-15.112.0-missing-authorization-allows-arbitrary-record-modification](https://www.vulncheck.com/advisories/frappe-erpnext-before-15.112.0-missing-authorization-allows-arbitrary-record-modification)

## 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)