How does CVE-2026-34456 affect Laravel applications?

The vulnerability allows an attacker to link a social account (like Google, GitHub, or Discord) they control to a victim's Reviactyl account, simply by using the victim's email address. This grants the attacker full access to the victim's account without needing their password.

What is the fix for CVE-2026-34456?

The fix is to update your Reviactyl installation to version 26.2.0-beta.5 or later. This version contains a patch that addresses the vulnerability in the OAuth authentication flow, preventing unauthorized account linking.

How can I check if my Laravel application is vulnerable to CVE-2026-34456?

Check the version of your Reviactyl installation. If you are using a version between 26.2.0-beta.1 and 26.2.0-beta.4, you are vulnerable and should update immediately. You can use #SITE_NAME# to check your dependencies for this and other vulnerabilities.

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CVSS 9.1CVE-2026-34456

Reviactyl Laravel CVE-2026-34456: Account Takeover Risk

Q: What is CVE-2026-34456?

CVE-2026-34456 is a critical vulnerability in Reviactyl, a game server management panel built with Laravel. It allows attackers to take over user accounts by exploiting the OAuth authentication flow, potentially granting them unauthorized access to sensitive data and system resources.

CVE-2026-34456 in Reviactyl exposes Laravel applications to account takeover. Patch to version 26.2.0-beta.5 immediately. Monitor your Laravel dependencies.

Published on April 4, 2026

A critical vulnerability, CVE-2026-34456, has been discovered in Reviactyl, affecting Laravel applications. This flaw allows attackers to take over user accounts by exploiting the OAuth authentication flow. An updated version, 26.2.0-beta.5, is now available to address this issue.

With a CVSS score of 9.1, this is a critical vulnerability requiring immediate attention.

What is Laravel?

Laravel is a popular open-source PHP web framework, designed for building robust and scalable web applications following the model-view-controller (MVC) architectural pattern. It provides a rich set of features, including routing, templating, database interaction, and authentication, simplifying the development process. Many applications rely on Laravel for their backend logic and API development. To learn more, you can search all laravel CVEs.

CVE-2026-34456: Reviactyl Account Takeover via OAuth

CVSS9.1

Affected versionsThis vulnerability affects Reviactyl versions from 26.2.0-beta.1 up to, but not including, 26.2.0-beta.5. Applications using these versions are susceptible to account takeover.

Critical vulnerability, allowing complete account takeover without authentication.

EPSS score of 0.067 indicates a low probability of exploitation.

The vulnerability lies in the OAuth authentication flow within Reviactyl. An attacker can exploit this by creating a social account using a victim's email address, which Reviactyl then automatically links, granting the attacker full access to the victim's account.

How to fix CVE-2026-34456 in Laravel

Patch immediately

1.Update your Reviactyl installation to version 26.2.0-beta.5 or later.

Update Reviactyl via Composer

composer update laravel

Workaround: There is no known workaround. Updating is the only solution.

NextGuard automatically flags CVE-2026-34456 if laravel appears in any of your monitored projects — no manual lookup required.

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Proactively detect and respond to security threats in your Laravel applications. monitor your laravel dependencies to receive real-time alerts on new vulnerabilities.

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Frequently asked questions

CVE-2026-34456 poses a significant risk to Laravel applications using Reviactyl. Ensure you update to version 26.2.0-beta.5 or later to mitigate this vulnerability and protect user accounts. You can see all laravel vulnerabilities on our platform.