CVE-2026-109640 Frappe ERPNext before 16.22.0 Missing Authorization Allows Unauthorized Record Modification

High 7.2 Published Updated

Authenticated users can modify unauthorized records in Frappe ERPNext due to missing authorization checks on specific endpoints.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-109640?

CVE-2026-109640 is a high-severity missing authorization vulnerability in frappe erpnext, published on 12 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Frappe ERPNext before 16.22.0 contains a missing authorization vulnerability that allows authenticated users to modify records by invoking endpoints lacking proper authorization checks. Attackers can call these endpoints to perform operations on records beyond their permitted role, resulting in unauthorized modification of data.

Weakness: CWE-862

Which versions are affected by CVE-2026-109640?

How do I fix CVE-2026-109640?

No fix has been published for CVE-2026-109640 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-109640 being exploited?

There is no known exploitation of CVE-2026-109640 in the wild and no public exploit code.

Sources

Also known as GHSA-c496-q7g2-62vv, GHSA-w3h8-9m75-6p69.

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