CVE-2026-29792— Feathersjs has an OAuth Callback Account Takeover

Feathersjs has an OAuth Callback Account Takeover

Feathersjs is a framework for creating web APIs and real-time applications with TypeScript or JavaScript. From 5.0.0 to before 5.0.42, an unauthenticated attacker can send a crafted GET request directly to /oauth/:provider/callback with a forged profile in the query string. The OAuth service's authentication payload has a fallback chain that reaches params.query (the raw request query) when Grant's session/state responses are empty. Since the attacker never initiated an OAuth authorize flow, Grant has no session to work with and produces no response, so the fallback fires. The forged profile then drives entity lookup and JWT minting. The attacker gets a valid access token for an existing user without ever contacting the OAuth provider. This vulnerability is fixed in 5.0.42.

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认证机制不恰当

Feathers 授权问题漏洞

Feathers是Feathers开源的一个轻量级的 Web 框架。用于使用 TypeScript 或 JavaScript 创建 API 和实时应用程序。 Feathers 5.0.0版本至5.0.42之前版本存在授权问题漏洞，该漏洞源于OAuth服务身份验证负载回退链允许使用伪造的profile参数，可能导致未经身份验证的攻击者获取现有用户的有效访问令牌。

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