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Mojolicious-9.47
⭐ Starred 2674 / Mojo::SSE
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::SSE - Server-Sent Events

SYNOPSIS

use Mojo::SSE qw(build_event parse_event);

DESCRIPTION

Mojo::SSE implements the Server-Sent Events protocol. Note that this module is EXPERIMENTAL and may change without warning!

FUNCTIONS

Mojo::SSE implements the following functions, which can be imported individually.

build_event

my $bytes = build_event $event, $chars;

Build Server-Sent Event.

parse_event

my $event = parse_event \$bytes;

Parse Server-Sent Event. Returns undef if no complete event was found.

SEE ALSO

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