Security Advisories (2)
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.

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.

NAME

Mojo::Cookie::Request - HTTP request cookie

SYNOPSIS

use Mojo::Cookie::Request;

my $cookie = Mojo::Cookie::Request->new;
$cookie->name('foo');
$cookie->value('bar');
say "$cookie";

DESCRIPTION

Mojo::Cookie::Request is a container for HTTP request cookies, based on RFC 6265.

ATTRIBUTES

Mojo::Cookie::Request inherits all attributes from Mojo::Cookie.

METHODS

Mojo::Cookie::Request inherits all methods from Mojo::Cookie and implements the following new ones.

parse

my $cookies = Mojo::Cookie::Request->parse('f=b; g=a');

Parse cookies.

to_string

my $str = $cookie->to_string;

Render cookie.

SEE ALSO

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