GHSA-g2fm-8hr4-j82h
Suggest an improvement- Source
- https://github.com/advisories/GHSA-g2fm-8hr4-j82h
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-g2fm-8hr4-j82h/GHSA-g2fm-8hr4-j82h.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-g2fm-8hr4-j82h
- Aliases
- Published
- 2026-09-02T14:39:11Z
- Modified
- 2026-09-02T14:45:06Z
- Severity
-
- 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- EasyAdmin custom-action dispatcher bypasses access_control on other routes
- Details
-
Summary
EasyAdmin serves all backend requests through a single dashboard route and, for custom actions (
Action::linkToRoute()/MenuItem::linkToRoute()), swaps the executed controller based on therouteNamequery parameter on thekernel.controllerevent.That swap happens after Symfony's security firewall has already evaluated
access_controlagainst the original dashboard URL, and therouteNamevalue was not validated. As a result, a path-basedaccess_controlrule protecting the target route was never evaluated, so a low-privilege backend user could reach a more restricted route by name.Impact
Any application where
access_control(or another path-based Symfony security rule) protects some routes more strictly than the dashboard URL used to reach EasyAdmin. An attacker 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]/denyAccessUnlessGranted()remain protected, because those checks are recomputed against the swapped-in controller.Patches
Fixed in 4.29.16 and 5.5.1. Before dispatching a custom-action route, EasyAdmin now re-evaluates the target route's
access_controlrule and denies the request if the current user is not granted access.Workarounds
Add controller-level authorization (
#[IsGranted]/denyAccessUnlessGranted()) to any sensitive route, since controller-level checks are still enforced. Upgrading is the recommended fix.Credits
Reported by @TungNGo02.
- Database specific
{ "cwe_ids": [ "CWE-639", "CWE-862", "CWE-863" ], "github_reviewed": true, "github_reviewed_at": "2026-09-02T14:39:11Z", "nvd_published_at": "2026-08-31T21:17:52Z", "severity": "HIGH" }- References
-
- https://github.com/EasyCorp/EasyAdminBundle/security/advisories/GHSA-g2fm-8hr4-j82h
- https://nvd.nist.gov/vuln/detail/CVE-2026-81892
- https://github.com/EasyCorp/EasyAdminBundle/commit/03be45c6b7213c4c984a1d0542b7ec60359329f8
- https://github.com/EasyCorp/EasyAdminBundle/commit/6228dfef598d81eeb0baa35625e50812f3c77699
- https://github.com/EasyCorp/EasyAdminBundle
- https://github.com/EasyCorp/EasyAdminBundle/releases/tag/v4.29.16
- https://github.com/EasyCorp/EasyAdminBundle/releases/tag/v5.5.1
- https://github.com/FriendsOfPHP/security-advisories/blob/master/easycorp/easyadmin-bundle/CVE-2026-81892.yaml
Affected packages
Packagist / easycorp/easyadmin-bundle
Package
- Name
- easycorp/easyadmin-bundle
- Purl
- pkg:composer/easycorp/easyadmin-bundle
Affected versions
v4.*
Packagist / easycorp/easyadmin-bundle
Package
- Name
- easycorp/easyadmin-bundle
- Purl
- pkg:composer/easycorp/easyadmin-bundle