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Plack-1.0053
⭐ Starred 488 / Plack::Middleware::SimpleLogger
Security Advisories (1)
CVE-2026-7381 (2026-04-29)

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.

NAME

Plack::Middleware::SimpleLogger - Simple logger that prints to psgi.errors

SYNOPSIS

enable "SimpleLogger", level => "warn";

DESCRIPTION

SimpleLogger is a middleware component that formats the log message with information such as the time and PID and prints them to psgi.errors stream, which is mostly STDERR or server log output.

SEE ALSO

Plack::Middleware::LogErrors, essentially the opposite of this module

AUTHOR

Tatsuhiko Miyagawa