Security Advisories (8)
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-2018-25100 (2018-02-13)

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

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

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

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-2018-02 (2018-05-11)

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

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 a HMAC session secret by default. These predictable default secrets can be exploited 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.

NAME

Mojo::IOLoop::Server - Non-blocking TCP server

SYNOPSIS

use Mojo::IOLoop::Server;

# Create listen socket
my $server = Mojo::IOLoop::Server->new;
$server->on(accept => sub {
  my ($server, $handle) = @_;
  ...
});
$server->listen(port => 3000);

# Start and stop accepting connections
$server->start;
$server->stop;

# Start reactor if necessary
$server->reactor->start unless $server->reactor->is_running;

DESCRIPTION

Mojo::IOLoop::Server accepts TCP connections for Mojo::IOLoop.

EVENTS

Mojo::IOLoop::Server inherits all events from Mojo::EventEmitter and can emit the following new ones.

accept

$server->on(accept => sub {
  my ($server, $handle) = @_;
  ...
});

Emitted for each accepted connection.

ATTRIBUTES

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

reactor

my $reactor = $server->reactor;
$server     = $server->reactor(Mojo::Reactor::Poll->new);

Low-level event reactor, defaults to the reactor attribute value of the global Mojo::IOLoop singleton.

METHODS

Mojo::IOLoop::Server inherits all methods from Mojo::EventEmitter and implements the following new ones.

generate_port

my $port = Mojo::IOLoop::Server->generate_port;

Find a free TCP port, primarily used for tests.

handle

my $handle = $server->handle;

Get handle for server, usually an IO::Socket::IP object.

is_accepting

my $bool = $server->is_accepting;

Check if connections are currently being accepted.

listen

$server->listen(port => 3000);
$server->listen({port => 3000});

Create a new listen socket. Note that TLS support depends on IO::Socket::SSL (1.94+).

These options are currently available:

address
address => '127.0.0.1'

Local address to listen on, defaults to 0.0.0.0.

backlog
backlog => 128

Maximum backlog size, defaults to SOMAXCONN.

port
port => 80

Port to listen on, defaults to a random port.

reuse
reuse => 1

Allow multiple servers to use the same port with the SO_REUSEPORT socket option.

single_accept
single_accept => 1

Only accept one connection at a time.

tls
tls => 1

Enable TLS.

tls_ca
tls_ca => '/etc/tls/ca.crt'

Path to TLS certificate authority file.

tls_cert
tls_cert => '/etc/tls/server.crt'
tls_cert => {'mojolicious.org' => '/etc/tls/mojo.crt'}

Path to the TLS cert file, defaults to a built-in test certificate.

tls_ciphers
tls_ciphers => 'AES128-GCM-SHA256:RC4:HIGH:!MD5:!aNULL:!EDH'

TLS cipher specification string. For more information about the format see https://www.openssl.org/docs/manmaster/apps/ciphers.html#CIPHER-STRINGS.

tls_key
tls_key => '/etc/tls/server.key'
tls_key => {'mojolicious.org' => '/etc/tls/mojo.key'}

Path to the TLS key file, defaults to a built-in test key.

tls_verify
tls_verify => 0x00

TLS verification mode, defaults to 0x03 if a certificate authority file has been provided, or 0x00.

tls_version
tls_version => 'TLSv1_2'

TLS protocol version.

port

my $port = $server->port;

Get port this server is listening on.

start

$server->start;

Start or resume accepting connections.

stop

$server->stop;

Stop accepting connections.

SEE ALSO

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