CVE-2026-27793

MEDIUM EPSS 13.8%
Published Feb 27, 20264mo ago · Modified Mar 4, 20263mo ago
6.5 CVSS 3.1
Medium
Find Similar
Published Feb 27, 2026 4mo ago
Last Modified Mar 4, 2026 3mo ago

Description

Seerr is an open-source media request and discovery manager for Jellyfin, Plex, and Emby. Prior to version 3.1.0, the `GET /api/v1/user/:id` endpoint returns the full settings object for any user, including Pushover, Pushbullet, and Telegram credentials, to any authenticated requester regardless of their privilege level. This vulnerability can be exploited alone or combined with the reported unauthenticated account creation vulnerability, CVE-2026-27707. When combined, the two vulnerabilities create a zero-prior-access chain that leaks third-party API credentials for all users, including administrators. Version 3.1.0 contains a fix for both this vulnerability and for CVE-2026-27707.

CVSS Details

Base Score
6.5
Exploitability
2.8
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
13.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-639

Affected Products 1

VendorProductVersionRange
seerrseerr* <3.1.0

References 3

  • github.com https://github.com/seerr-team/seerr/commit/4f089b29d0bb41d382168b17aa152eb5b8a25303
    Patch
  • github.com https://github.com/seerr-team/seerr/releases/tag/v3.1.0
    Release Notes
  • github.com https://github.com/seerr-team/seerr/security/advisories/GHSA-f7xw-jcqr-57hp
    Vendor Advisory

Remediation

  • github.com https://github.com/seerr-team/seerr/commit/4f089b29d0bb41d382168b17aa152eb5b8a25303
    Patch