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.

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

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. 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

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