CVE-2026-58399— Antonio Castellon module-auth 授权问题漏洞

@acastellon/auth has an authentication bypass via spoofable headers in validateToken()

@acastellon/auth is an authentication control system for microservices. Versions prior to 2.3.0 appear to allow an unauthenticated authentication bypass in validateToken() through spoofable auth-user and Host request headers. The validateToken middleware contains a service-to-service bypass for auth-user: service-brother when req.get('host').startsWith(getHostName()). Both values involved in the check can be influenced by an unauthenticated HTTP client: auth-user is a request header, and Host is also client-controlled. As a result, a remote unauthenticated attacker can send a request with crafted headers and bypass token validation before the normal legacy/JWT/OIDC validation logic runs. A fix has been implemented in v2.3.0.

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认证机制不恰当

Antonio Castellon module-auth 授权问题漏洞

Antonio Castellon module-auth是Antonio Castellon个人开发者开源的一款身份验证功能模块。 Antonio Castellon module-auth 2.3.0之前版本存在授权问题漏洞，该漏洞源于在validateToken()中未经身份验证的认证绕过，可通过可伪造的auth-user和Host请求头实现，导致远程未授权攻击者发送特制请求头绕过令牌验证。

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