# CVE-2026-109668: Frappe ERPNext missing authorization in party record endpoints

Source: https://junglewise.ai/threats/cve-2026-109668-frappe-erpnext-before-15-110-0-and-16-x-before-16-21-0-contains  
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-2026-109668 · Severity: medium · CVSS 4.3 · Published 2026-10-12

Frappe ERPNext is an open-source enterprise resource planning (ERP) system that manages business operations including customer and vendor records. A missing authorization flaw allows low-privileged authenticated users to modify party records (customers, vendors) that they should not have access to, potentially leading to data corruption or unauthorized business transactions.

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

## Quick answers

**Is CVE-2026-109668 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-109668 being exploited in the wild.

**How severe is CVE-2026-109668?** Medium severity, with a CVSS score of 4.3, published 12 October 2026.

**Which products and versions are affected?** Frappe ERPNext before 15.110.0 and 16.x before 16.21.0.

**Is there a fix for CVE-2026-109668?** Yes: fixed in ERPNext 15.110.0, 16.21.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-109668 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-109668?** 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 15.110.0, 16.21.0

## Technical details

The vulnerability is a missing authorization (CWE-862) flaw in specific API endpoints that handle party records. An authenticated user with low privileges can bypass authorization checks via network requests and modify party data beyond their assigned role permissions. The attack requires authentication but no user interaction, affecting data integrity with no fix prior to the stated patched versions.

## Affected products

- Frappe ERPNext before 15.110.0 and 16.x before 16.21.0

## Timeline

- 2026-10-12: advisory

## References

- [https://github.com/frappe/erpnext/security/advisories/GHSA-5mcx-cjjh-gc64](https://github.com/frappe/erpnext/security/advisories/GHSA-5mcx-cjjh-gc64)
- [https://www.vulncheck.com/advisories/frappe-erpnext-before-15.110.0-missing-authorization-in-party-record-endpoints](https://www.vulncheck.com/advisories/frappe-erpnext-before-15.110.0-missing-authorization-in-party-record-endpoints)

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