CVE-2026-7381
CriticalSummary
Plack::Middleware::XSendfile versions through 1.0053 for Perl allow client-controlled path rewriting. A client can set the X-Sendfile-Type header to 'X-Accel-Redirect', enabling path mapping to arbitrary files on the server.
Risk Assessment
An attacker could access sensitive files on the server, potentially leading to data leaks. This poses a serious threat to the security of the application and the organization's data.
Recommendation
It is recommended to upgrade to a newer version of Plack, as Plack::Middleware::XSendfile is deprecated and will be removed in future releases. Additional server-level security measures should also be considered.
Original NVD description (English source)
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.