PT-2026-21484 · Packagist · Cesargb/Laravel-Magiclink

Published 2026-02-12 · Updated 2026-02-12

OSV

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

MagicLink stores serialized action objects in the magic links.action database column and deserializes them without integrity validation or class allowlisting in src/MagicLink.php and src/Actions/ResponseAction.php. An attacker with the ability to manipulate database records (e.g., via SQL injection or compromised admin access) could inject malicious serialized objects containing arbitrary closures, leading to Remote Code Execution (RCE) when the magic link is visited.

Resolution

The vulnerability has been mitigated through HMAC-signed serialization using the application key, class allowlisting restricted to ActionAbstract subclasses and framework classes, strict type validation preventing arbitrary object storage, and backward compatibility support for legacy data via allowed classes in unserialize(). Implementation includes a new Serializable security class with signing/verification, refactored getter/setter methods in MagicLink.

Fix

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

GHSA-R33W-FG8J-9C94

Affected Products

Cesargb/Laravel-Magiclink

References · 4

• https://osv.dev/vulnerability/GHSA-r33w-fg8j-9c94 · Vendor Advisory
• https://github.com/cesargb/laravel-magiclink/security/advisories/GHSA-r33w-fg8j-9c94 · Note
• https://github.com/cesargb/laravel-magiclink · Note
• https://github.com/cesargb/laravel-magiclink/releases/tag/v2.25.1 · Note