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Plack-0.9001
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

Changes for version 0.9001 - 2009-10-13

  • Downgrade EUMM in inc/

Documentation

plackup
Run PSGI application with Plack servers

Modules

HTTP::Message::PSGI
Converts HTTP::Request and HTTP::Response from/to PSGI env and response
Plack
PSGI reference implementation and utilities
Plack::App::Directory
Serve static files from document root with directory index
Plack::App::FCGIDispatcher
Dispatch requests to FCGI servers
Plack::App::File
Serve static files from root directory
Plack::App::URLMap
Map multiple apps in different paths
Plack::Builder
OO and DSL to enable Plack Middlewares
Plack::HTTPParser
Parse HTTP headers
Plack::HTTPParser::PP
Pure perl fallback of HTTP::Parser::XS
Plack::Loader
(auto)load Plack Servers
Plack::Middleware
Base class for easy-to-use PSGI middleware
Plack::Middleware::AccessLog
Logs requests like Apache's log format
Plack::Middleware::AccessLog::Timed
Logs requests with time and accurate body size
Plack::Middleware::ConditionalGET
Middleware to add "conditional", GET
Plack::Middleware::ContentLength
Adds Content-Length header automatically
Plack::Middleware::ErrorDocument
Set Error Document based on HTTP status code
Plack::Middleware::Lint
Validate request and response
Plack::Middleware::MethodOverride
Overrides HTTP method with X-HTTP-Method-Override header
Plack::Middleware::RearrangeHeaders
Reorder HTTP headers for buggy clients
Plack::Middleware::Restarter
Restart the standalone server
Plack::Middleware::SimpleContentFilter
Filters response content
Plack::Middleware::StackTrace
Displays stack trace when your app dies
Plack::Middleware::Static
serve static files with Plack
Plack::Middleware::XFramework
Sample middleware to add X-Framework
Plack::Middleware::XSendfile
Sets X-Sendfile (or a like) header for frontends
Plack::Server
Standard interface for Plack implementations
Plack::Server::Apache2
Apache 2.0 handlers to run PSGI application
Plack::Server::Standalone
single process standalone HTTP server
Plack::Server::Standalone::Prefork
Prefork standalone HTTP server
Plack::Test
Test PSGI applications with various backends
Plack::Test::MockHTTP
Run mocked HTTP tests through PSGI applications
Plack::Test::Server
Run HTTP tests through live Plack servers
Plack::Util
Utility subroutines for Plack server and framework developers

Provides

CalledClose
in lib/Plack/Test/Suite.pm
Plack::Server::CGI
in lib/Plack/Server/CGI.pm
Plack::Server::FCGI
in lib/Plack/Server/FCGI.pm
Plack::Test::Suite
in lib/Plack/Test/Suite.pm
Plack::Util::IOWithPath
in lib/Plack/Util.pm
Plack::Util::Prototype
in lib/Plack/Util.pm

Examples

Other files