CVE-2026-102245 MODSetter SurfSense circleback Endpoint circleback_webhook_route.py missing authentication

Medium 6.9 Published Updated

Remote attackers can bypass authentication on the SurfSense circleback webhook endpoint due to missing authorization checks.

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

What is CVE-2026-102245?

CVE-2026-102245 is a medium-severity missing authorization vulnerability in MODSetter SurfSense, published on 29 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A weakness has been identified in MODSetter SurfSense up to 2.0.3. The affected element is an unknown function of the file surfsense_backend/app/routes/circleback_webhook_route.py of the component circleback Endpoint. Executing a manipulation can lead to missing authentication. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-306, CWE-287

Which versions are affected by CVE-2026-102245?

How do I fix CVE-2026-102245?

No fix has been published for CVE-2026-102245 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-2026-102245 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-102245 exists.

Sources

Also known as GHSA-6hf7-jgwh-5jh8.

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