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Mojolicious-6.49
⭐ Starred 2674 / Mojo::UserAgent::Server
Security Advisories (9)
CPANSA-Mojolicious-2022-03 (2022-12-10)

Mojo::DOM did not correctly parse <script> tags.

CPANSA-Mojolicious-2021-02 (2021-06-01)

Small sessions could be used as part of a brute-force attack to decode the session secret.

CVE-2021-47208 (2021-03-16)

A bug in format detection can potentially be exploited for a DoS attack.

CVE-2020-36829 (2020-11-10)

Mojo::Util secure_compare can leak the string length. By immediately returning when the two strings are not the same length, the function allows an attacker to guess the length of the secret string using timing attacks.

CPANSA-Mojolicious-2018-03 (2018-05-19)

Mojo::UserAgent was not checking peer SSL certificates by default.

CPANSA-Mojolicious-2018-02 (2018-05-11)

GET requests with embedded backslashes can be used to access local files on Windows hosts

CVE-2018-25100 (2018-02-13)

Mojo::UserAgent::CookieJar leaks old cookies because of the missing host_only flag on empty domain.

CVE-2024-58134 (2025-05-03)

Mojolicious versions from 0.999922 for Perl uses a hard coded string, or the application's class name, as an HMAC session cookie secret by default. These predictable default secrets can be exploited by an attacker to forge session cookies.  An attacker who knows or guesses the secret could compute valid HMAC signatures for the session cookie, allowing them to tamper with or hijack another user’s session.

CVE-2026-14803 (2026-07-06)

Mojo::JSON versions before 9.47 for Perl allow memory exhaustion via unbounded recursion in the pure-Perl decoder. The pure-Perl decode path (`_decode_value` dispatching to `_decode_array` and `_decode_object`) recurses with no depth limit, so a small deeply nested JSON document can consume excessive memory. This path is the default when Cpanel::JSON::XS is not installed or `MOJO_NO_JSON_XS=1` is set; the Cpanel::JSON::XS fast path is not affected. Any caller that decodes an untrusted JSON body, for example `Mojo::Message::json` reached through `$c->req->json`, can exhaust process memory and cause denial of service.

NAME

Mojo::UserAgent::Server - Application server

SYNOPSIS

use Mojo::UserAgent::Server;

my $server = Mojo::UserAgent::Server->new;
say $server->url;

DESCRIPTION

Mojo::UserAgent::Server is an embedded web server based on Mojo::Server::Daemon that processes requests for Mojo::UserAgent.

ATTRIBUTES

Mojo::UserAgent::Server implements the following attributes.

ioloop

my $loop = $server->ioloop;
$server  = $server->ioloop(Mojo::IOLoop->new);

Event loop object to use for I/O operations, defaults to the global Mojo::IOLoop singleton.

METHODS

Mojo::UserAgent::Server inherits all methods from Mojo::Base and implements the following new ones.

app

my $app = Mojo::UserAgent::Server->app;
          Mojo::UserAgent::Server->app(Mojolicious->new);
my $app = $server->app;
$server = $server->app(Mojolicious->new);

Application this server handles, instance specific applications override the global default.

# Change application behavior
$server->app->defaults(testing => 'oh yea!');

nb_url

my $url = $ua->nb_url;
my $url = $ua->nb_url('http');
my $url = $ua->nb_url('https');

Get absolute Mojo::URL object for server processing non-blocking requests with "app" and switch protocol if necessary.

restart

$server->restart;

Restart server with new port.

url

my $url = $ua->url;
my $url = $ua->url('http');
my $url = $ua->url('https');

Get absolute Mojo::URL object for server processing blocking requests with "app" and switch protocol if necessary.

SEE ALSO

Mojolicious, Mojolicious::Guides, http://mojolicious.org.