Auth bypass in Seerr
CVE-2026-27792
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (20.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 20.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- Seerr
- Seerr-Team Seerr — versions >= 2.7.0, < 3.1.0
Weakness classification (CWE)
References
- github.com/seerr-team/seerr/security/advisories/GHSA-gx3h-3jg5-q65f (Vendor Advisory)
- github.com/seerr-team/seerr/commit/946bdecec524b4e7f8aaf8f2b3856f319a3580c1 (Patch)
- github.com/seerr-team/seerr/releases/tag/v3.1.0 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-27792?
- CVE-2026-27792 is a medium-severity vulnerability in Seerr, classified under Missing Authorization. CVSS score: 5.4/10. Published 2026-02-27.
- How severe is CVE-2026-27792?
- Medium severity. CVSS v3 base score is 5.4 out of 10.