CVE-2026-7381— Plack::Middleware::XSendfile 信息泄露漏洞

Plack::Middleware::XSendfile versions through 1.0053 for Perl can allow client-controlled path rewriting

Plack::Middleware::XSendfile versions through 1.0053 for Perl can allow client-controlled path rewriting. Plack::Middleware::XSendfile allows the variation setting (sendfile type) to be set by the client via the X-Sendfile-Type header, if it is not considered in the middleware constructor or the Plack environment. A malicious client can set the X-Sendfile-Type header to "X-Accel-Redirect" to services running behind nginx reverse proxies, and then set the X-Accel-Mapping to map the path to an arbitrary file on the server. Since 1.0053, Plack::Middleware::XSendfile is deprecated and will be removed from future releases of Plack. This is similar to CVE-2025-61780 for Rack::Sendfile, although Plack::Middleware::XSendfile has some mitigations that disallow regular expressions to be used in the mapping, and only apply the mapping for the "X-Accel-Redirect" type.

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信息暴露

Plack::Middleware::XSendfile 信息泄露漏洞

Plack::Middleware::XSendfile是MIYAGAWA个人开发者的一个为Web应用提供高效文件传输支持的中间件组件。 Plack::Middleware::XSendfile 1.0053及之前版本存在信息泄露漏洞，该漏洞源于允许客户端通过X-Sendfile-Type标头控制路径重写，可能导致恶意客户端设置X-Accel-Redirect类型并映射到任意文件。

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