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CVE-2026-27793— Seerr has Broken Object-Level Authorization in User Profile Endpoint that Exposes Third-Party Notification Credentials

Quick assessment

Affected
seerr-team seerr
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

seerr是Seerr Team开源的一个媒体请求和发现管理器。 Seerr 3.1.0之前版本存在安全漏洞，该漏洞源于GET /api/v1/user/:id端点向任何经过身份验证的请求者返回完整设置对象，可能导致泄露第三方API凭据。

CVSS 6.5 · Medium EPSS 0.42% · P34
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I. Basic Information for CVE-2026-27793

Vulnerability Information
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Vulnerability Title
Seerr has Broken Object-Level Authorization in User Profile Endpoint that Exposes Third-Party Notification Credentials
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
seerr 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
seerr是Seerr Team开源的一个媒体请求和发现管理器。 Seerr 3.1.0之前版本存在安全漏洞，该漏洞源于GET /api/v1/user/:id端点向任何经过身份验证的请求者返回完整设置对象，可能导致泄露第三方API凭据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
seerr-team seerr < 3.1.0 -

II. Public POCs for CVE-2026-27793

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III. Intelligence Information for CVE-2026-27793

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Patches & Fixes for CVE-2026-27793 (1)

Vendor Advisories for CVE-2026-27793 (1)

Same Patch Batch · seerr-team · 2026-02-27 · 3 CVEs total

CVE-2026-27707 7.3 HIGH Plex-configured Seerr instances vulnerable to unauthenticated account registration via Jel
CVE-2026-27792 5.4 MEDIUM Seerr missing authentication on pushSubscription endpoints

IV. Related Vulnerabilities

Same product: seerr
Same vendor: seerr-team
Same weakness: CWE-639

V. Comments for CVE-2026-27793

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