CVE-2026-27792 Seerr missing authentication on pushSubscription endpoints

Medium 5.4 Published 27 Feb 2026 Updated 27 Feb 2026

Authenticated users can access and modify other users' data due to missing authorization checks on push subscription 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-2026-27792?

CVE-2026-27792 is a medium-severity missing authorization vulnerability in seerr-team seerr, published on 27 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Seerr is an open-source media request and discovery manager for Jellyfin, Plex, and Emby. A missing authorization vulnerability has been identified in the application starting in version 2.7.0 and prior to version 3.1.0. It allows authenticated users to access and modify data belonging to other users. This issue is due to the absence of the `isOwnProfileOrAdmin()` middleware on several push subscription API routes. Version 3.1.0 fixes the issue.

Weakness: CWE-862

Which versions are affected by CVE-2026-27792?

It affects 1 product.

Products include Seerr Seerr.

How do I fix CVE-2026-27792?

No fix has been published for CVE-2026-27792 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-2026-27792 being exploited?

There is no known exploitation of CVE-2026-27792 in the wild and no public exploit code.

Sources

Also known as GHSA-gx3h-3jg5-q65f.