CVE-2026-41194 FreeScout's Mailbox OAuth disconnect uses a state-changing GET and is CSRFable
An attacker can force a logged-in mailbox admin to disconnect OAuth providers via a cross-site request, disrupting email integration.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-41194?
CVE-2026-41194 is a medium-severity vulnerability in freescout-help-desk freescout, published on 21 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, the mailbox OAuth disconnect action is implemented as `GET /mailbox/oauth-disconnect/{id}/{in_out}/{provider}`. It removes stored OAuth metadata from the mailbox and then redirects. Because it is a GET route, no CSRF token is required and the action can be triggered cross-site against a logged-in mailbox admin. Version 1.8.215 fixes the vulnerability.
Weakness: CWE-352
Which versions are affected by CVE-2026-41194?
How do I fix CVE-2026-41194?
No fix has been published for CVE-2026-41194 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-41194 being exploited?
There is no known exploitation of CVE-2026-41194 in the wild and no public exploit code.
Sources
Also known as GHSA-6rvw-fhqx-cfv5.