/ 
Mojolicious-9.46
⭐ Starred 2674 / Mojo::Home
Security Advisories (3)
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.

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-2026-15747 (2026-07-14)

Mojolicious versions from 4.59 before 9.48 for Perl expose a stable representation of the session CSRF token to a BREACH compression oracle. _csrf_token generates and caches one token per session and returns the same value on every call, and _csrf_field places that value in a hidden `csrf_token` input. When a response carrying the token also echoes attacker-controlled input and is gzip-compressed, the chosen values and the resulting compressed lengths form a BREACH oracle. An attacker able to query it can recover the token and pass csrf_protect validation.

NAME

Mojo::Home - Home sweet home

SYNOPSIS

use Mojo::Home;

# Find and manage the project root directory
my $home = Mojo::Home->new;
$home->detect;
say $home->child('templates', 'layouts', 'default.html.ep');
say "$home";

DESCRIPTION

Mojo::Home is a container for home directories based on Mojo::File.

METHODS

Mojo::Home inherits all methods from Mojo::File and implements the following new ones.

detect

$home = $home->detect;
$home = $home->detect('My::App');

Detect home directory from the value of the MOJO_HOME environment variable or the location of the application class.

rel_file

my $path = $home->rel_file('foo/bar.html');

Return a new Mojo::Home object relative to the home directory.

OPERATORS

Mojo::Home inherits all overloaded operators from Mojo::File.

SEE ALSO

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