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I. Basic Information for CVE-2026-33890
Vulnerability Information

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Vulnerability Title
MyTube has an Unauthenticated Admin Privilege Escalation via Passkey Registration
Source: NVD (National Vulnerability Database)
Vulnerability Description
MyTube is a self-hosted downloader and player for several video websites Prior to version 1.8.71, an unauthenticated attacker can register an arbitrary passkey and subsequently authenticate with it to obtain a full admin session. The application exposes passkey registration endpoints without requiring prior authentication. Any successfully authenticated passkey is automatically granted an administrator token, allowing full administrative access to the application. This enables a complete compromise of the application without requiring any existing credentials. Version 1.8.71 fixes the issue.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
访问控制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
MyTube 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MyTube是Peifan Li个人开发者的一个视频自托管下载器和播放器。 MyTube 1.8.71之前版本存在安全漏洞,该漏洞源于未经验证的攻击者可以注册任意通行密钥并随后使用其进行身份验证以获得完整的管理员会话,可能导致应用程序完全被攻陷。
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
VendorProductAffected VersionsCPESubscribe
franklioxygenMyTube < 1.8.71 -
II. Public POCs for CVE-2026-33890
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III. Intelligence Information for CVE-2026-33890
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IV. Related Vulnerabilities
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