CVE-2026-9808 Mautic has an Authorization Bypass in API v2 Endpoints

High 7.1 Published Updated

Low-privilege API users can bypass ownership restrictions to access or modify other users' resources in Mautic.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-9808?

CVE-2026-9808 is a high-severity missing authorization vulnerability in mautic/core, published on 29 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An authorization bypass vulnerability exists in the Mautic 7 API v2 endpoints (utilizing API Platform). Under certain conditions, roles configured with owner-scope restrictions (such as `viewown` or `editown`) are not properly enforced. This allows low-privilege authenticated API users to bypass ownership-logic controls and access or modify resources belonging to other users.

Weakness: CWE-863

Which versions are affected by CVE-2026-9808?

2 open source packages ship an affected version, including mautic/core.

PackageAffectedFixed in
mautic/core PackagistFrom 7.0.07.1.2
mautic/core PackagistFrom 7.0.07.1.2

How do I fix CVE-2026-9808?

Upgrade mautic/core to 7.1.2 or later.

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

Is CVE-2026-9808 being exploited?

There is no known exploitation of CVE-2026-9808 in the wild and no public exploit code.

Sources

Also known as GHSA-2jrw-c95w-h43g.

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