/ 
Plack-1.0055
⭐ Starred 488 / Plack::Middleware::LogDispatch
Security Advisories (1)
CVE-2026-115825 (2026-10-25)

HTTP::Server::PSGI versions before 1.0056 for Perl allow a single request to crash the server by declaring a large Content-Length. The request body is read with sysread() calls sized by the remaining Content-Length. Perl grows the read buffer to the requested length before any data arrives, so the server tries to allocate as much memory as the client declares. A remote attacker can send one request with a large Content-Length and a few body bytes, and perl exits with an out-of-memory error before the application is called. HTTP::Server::PSGI runs as a single process, so the server stays down until restarted.

NAME

Plack::Middleware::LogDispatch - Uses Log::Dispatch to configure logger

SYNOPSIS

use Log::Dispatch;

my $logger = Log::Dispatch->new;
$logger->add( Log::Dispatch::File->new(...) );
$logger->add( Log::Dispatch::DesktopNotification->new(...) );

builder {
    enable "LogDispatch", logger => $logger;
    $app;
}

# use with Log::Dispatch::Config
use Log::Dispatch::Config;
Log::Dispatch::Config->configure('/path/to/log.conf');

builder {
    enable "LogDispatch", logger => Log::Dispatch::Config->instance;
    ...
}

DESCRIPTION

LogDispatch is a Plack::Middleware component that allows you to use Log::Dispatch to configure the logging object, psgix.logger.

CONFIGURATION

logger

Log::Dispatch object to send logs to. Required.

AUTHOR

Tatsuhiko Miyagawa

SEE ALSO

Log::Dispatch

Plack::Middleware::Log4perl