EasyAdmin is a fast and modern admin generator for Symfony applications

Overview

EasyAdmin is a fast and modern admin generator for Symfony applications. From 4.0.0 until 4.29.16 and 5.5.1, EasyAdmin serves all backend requests through a single dashboard route and, for custom actions (Action::linkToRoute() and MenuItem::linkToRoute()), swaps the executed controller based on the routeName query parameter on the kernel.controller event. The swap happens after Symfony's security firewall has already evaluated access_control against the original dashboard URL, and the routeName value was not validated. As a result, a path-based access_control rule protecting the target route was never evaluated, so a low-privilege backend user who can reach a single EasyAdmin URL and knows a target route's name can execute that route's controller, bypassing the path-based rule. Only path-based protections are bypassed. Routes whose controller enforces its own authorization with #[IsGranted] or denyAccessUnlessGranted() remain protected because those checks are recomputed against the swapped-in controller. This issue is fixed in versions 4.29.16 and 5.5.1.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

Package advisory (CVE-2026-81892)

Affected packages:

• easycorp/easyadmin-bundle >= 4.0.0, < 4.29.16
• easycorp/easyadmin-bundle >= 5.0.0, < 5.5.1

Patched in:

• easycorp/easyadmin-bundle 4.29.16
• easycorp/easyadmin-bundle 5.5.1

Source: https://github.com/advisories/GHSA-g2fm-8hr4-j82h