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Plack-0.9973
⭐ Starred 488 / HTTP::Message::PSGI
Security Advisories (4)
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.

CPANSA-Plack-2015-0202 (2015-02-02)

Fixed a possible directory traversal with Plack::App::File on Win32.

CPANSA-Plack-2014-0801 (2014-08-01)

Plack::App::File would previously strip trailing slashes off provided paths. This in combination with the common pattern of serving files with Plack::Middleware::Static could allow an attacker to bypass a whitelist of generated files

CPANSA-Plack-2013-0131 (2013-01-31)

Fixed directory traversal bug in Plack::App::File on win32 environments

NAME

HTTP::Message::PSGI - Converts HTTP::Request and HTTP::Response from/to PSGI env and response

SYNOPSIS

use HTTP::Message::PSGI;

# $req is HTTP::Request, $res is HTTP::Response
my $env = req_to_psgi($req);
my $res = res_from_psgi([ $status, $headers, $body ]);

# Adds methods to HTTP::Request/Response class as well
my $env = $req->to_psgi;
my $res = HTTP::Response->from_psgi([ $status, $headers, $body ]);

DESCRIPTION

HTTP::Message::PSGI gives you convenient methods convert HTTP::Request object to PSGI env hash and convert PSGI response array ref to HTTP::Response object.

If you want the other way round, see Plack::Request and Plack::Response.

METHODS

req_to_psgi
my $env = req_to_psgi($req [, $key => $val ... ]);

Converts HTTP::Request object into PSGI env hash reference.

HTTP::Request::to_psgi
my $env = $req->to_psgi;

Same as req_to_psgi but an instance method in HTTP::Request.

res_from_psgi
my $res = res_from_psgi([ $status, $headers, $body ]);

Creates HTTP::Response object from PSGI response array ref.

HTTP::Response->from_psgi
my $res = HTTP::Response->from_psgi([ $status, $headers, $body ]);

Same as res_from_psgi but a class method in HTTP::Response.

AUTHOR

Tatsuhiko Miyagawa

SEE ALSO

HTTP::Request::AsCGI HTTP::Message Plack::Test