/ 
Plack-0.9028
⭐ Starred 488 / Plack::App::URLMap
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

Plack::App::URLMap - Map multiple apps in different paths

SYNOPSIS

use Plack::App::URLMap;

my $app1 = sub { ... };
my $app2 = sub { ... };
my $app3 = sub { ... };

my $urlmap = Plack::App::URLMap->new;
$urlmap->map("/" => $app1);
$urlmap->map("/foo" => $app2);
$urlmap->map("http://bar.example.com/" => $app3);

my $app = $urlmap->to_app;

DESCRIPTION

Plack::App::URLMap is a PSGI application that can dispatch multiple applications based on URL path and hostnames (a.k.a "virtual hosting") and takes care of rewriting SCRIPT_NAME and PATH_INFO. This module is inspired by Rack::URLMap.

METHODS

map
$urlmap->map("/foo" => $app);
$urlmap->map("http://bar.example.com/" => $another_app);

Maps URL path or an absolute URL to a PSGI application. The match order is sorted by host name length and then path length.

URL paths need to match from the beginning and should match completely till the path separator (or the end of the path). For example, if you register the path /foo, it will match with the request /foo, /foo/ or /foo/bar but it won't match with /foox.

Mapping URL with host names is also possible, and in that case the URL mapping works like a virtual host.

mount

Alias for map.

to_app
my $handler = $urlmap->to_app;

Returns the PSGI application code reference. Note that the Plack::App::URLMap object is callable (by overloading the code dereference), so returning the object itself as a PSGI application should also work.

AUTHOR

Tatsuhiko Miyagawa

SEE ALSO

Plack::Builder