# CVE-2026-109656: Frappe ERPNext missing authorization on item master endpoints

Source: https://junglewise.ai/threats/cve-2026-109656-frappe-erpnext-before-15-118-2-and-16-x-before-16-30-0-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-2026-109656 · Severity: medium · CVSS 6.5 · Published 2026-10-12

Frappe ERPNext is an open-source ERP system that manages business data including inventory and products. Certain API endpoints fail to properly check user permissions, allowing low-privilege users to view sensitive item master data they should not have access to. An attacker with a basic user account could expose confidential product information, pricing, and supplier details.

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

## Quick answers

**Is CVE-2026-109656 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-109656 being exploited in the wild.

**How severe is CVE-2026-109656?** Medium severity, with a CVSS score of 6.5, published 12 October 2026.

**Which products and versions are affected?** Frappe ERPNext before 15.118.2, 16.x before 16.30.0.

**Is there a fix for CVE-2026-109656?** Yes: fixed in 15.118.2, 16.30.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-109656 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-109656?** 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 15.118.2, 16.30.0

## Technical details

Missing authorization checks in certain endpoints handling item master data allow authenticated attackers with low privileges to bypass role-based access controls. The vulnerability requires network access and low-privilege authentication but no user interaction; it exposes confidential data with high confidentiality impact but no integrity or availability impact. A fix is available in versions 15.118.2 and 16.30.0.

## Affected products

- Frappe ERPNext before 15.118.2, 16.x before 16.30.0

## Timeline

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

## References

- [https://github.com/frappe/erpnext/security/advisories/GHSA-4j82-w8f7-hqqp](https://github.com/frappe/erpnext/security/advisories/GHSA-4j82-w8f7-hqqp)
- [https://www.vulncheck.com/advisories/frappe-erpnext-before-15.118.2-unauthorized-item-master-data-access](https://www.vulncheck.com/advisories/frappe-erpnext-before-15.118.2-unauthorized-item-master-data-access)

## 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)