CVE-2026-27793— Seerr has Broken Object-Level Authorization in User Profile Endpoint that Exposes Third-Party Notification Credentials
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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: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: NVD (National Vulnerability Database)
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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|---|
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- Merge commit from fork · seerr-team/seerr@4f089b2 · GitHubx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-27793
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 |
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V. Comments for CVE-2026-27793
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