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CVE-2026-81892
Published:August 31, 2026
Updated:September 24, 2026
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.
Affected Packages
https://github.com/EasyCorp/EasyAdminBundle.git (GITHUB):
Affected version(s) >=v5.0.0-BETA1 <v5.5.1
Fix Suggestion:
Update to version v5.5.1
https://github.com/EasyCorp/EasyAdminBundle.git (GITHUB):
Affected version(s) >=v4.0.0 <v4.29.16
Fix Suggestion:
Update to version v4.29.16
easycorp/easyadmin-bundle (PHP):
Affected version(s) >=v4.0.0 <v4.29.16
Fix Suggestion:
Update to version v4.29.16
easycorp/easyadmin-bundle (PHP):
Affected version(s) >=v5.0.0-BETA1 <v5.5.1
Fix Suggestion:
Update to version v5.5.1
easycorp/easyadmin-bundle (PHP):
Affected version(s) >=v5.0.0 <v5.5.1
Fix Suggestion:
Update to version v5.5.1
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CVSS v4
Base Score:
8.6
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Incorrect Authorization
Authorization Bypass Through User-Controlled Key
Missing Authorization
EPSS
Base Score:
0.25