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CVE-2026-63433— MyTube: CSRF Protection Bypass via Arbitrary x-api-key Header Value

Quick assessment

Affected
franklioxygen MyTube
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.

MyTube 是一款支持多个视频网站的自托管下载器与播放器。在 1.10.6 版本之前, 中的 函数会调用 ,后者仅依据请求头中是否存在 或 字段(而不对 API 密钥进行实际验证)就授予跨站请求伪造(CSRF)豁免。若 配置过于宽松,未认证的攻击者可诱使已认证的管理员访问其控制的资源,该资源会发起携带任意 API 密钥值的跨域状态变更请求。此时,受害者的会话 Cookie 用于通过身份验证,而 CSRF 令牌验证被跳过,从而允许执行删除媒体、触发下载或修改订阅等破坏性或其他管理员级别的 API 操作。该问题已在

CVSS 6.8 · Medium
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I. Basic Information for CVE-2026-63433

Vulnerability Information

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Vulnerability Title
MyTube: CSRF Protection Bypass via Arbitrary x-api-key Header Value
Source: CVE Program / CVE List V5
Vulnerability Description
MyTube is a self-hosted downloader and player for several video websites. Prior to 1.10.6, shouldSkipCsrfProtection() in backend/src/middleware/csrfConfig.ts delegates to isApiKeyRequest(), which grants a CSRF exemption based only on the presence of an x-api-key header or an Authorization: ApiKey value rather than successful API-key validation. With a permissive CORS_ALLOWED_ORIGINS configuration, an unauthenticated attacker can lure an authenticated administrator to attacker-controlled content that sends a cross-origin state-changing request with an arbitrary API-key value. The victim's session cookie authenticates the request while CSRF token validation is skipped, allowing destructive or other administrator API operations such as deleting media, triggering downloads, or changing subscriptions. This issue is fixed in version 1.10.6.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨站请求伪造(CSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
franklioxygen MyTube < 1.10.6 -

II. Public POCs for CVE-2026-63433

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III. Intelligence Information for CVE-2026-63433

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Other References for CVE-2026-63433 (2)

IV. Related Vulnerabilities