CVE-2026-31878 Frappe: Possible SSRF by any authenticated user

Medium 5.0 Published Updated

An authenticated user can trigger server-side requests to arbitrary internal or external services, potentially exposing internal data or bypassing network restrictions.

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-2026-31878?

CVE-2026-31878 is a medium-severity server-side request forgery vulnerability in frappe, published on 11 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Frappe is a full-stack web application framework. Prior to 14.100.1, 15.100.0, and 16.6.0, a malicious user could send a crafted request to an endpoint which would lead to the server making an HTTP call to a service of the user's choice. This vulnerability is fixed in 14.100.1, 15.100.0, and 16.6.0.

Weakness: CWE-918

Which versions are affected by CVE-2026-31878?

It affects 1 product.

Products include Frappe Frappe.

How do I fix CVE-2026-31878?

No fix has been published for CVE-2026-31878 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2026-31878 being exploited?

There is no known exploitation of CVE-2026-31878 in the wild and no public exploit code.

Sources

Also known as GHSA-mggg-hmjm-j6c2.

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