EasyAdmin custom-action dispatcher bypasses access_control on other routes — GHSA-G2FM-8HR4-J82H

Summary

## 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 the `routeName` query parameter on the `kernel.controller` event. That swap happens **after** Symfony's security firewall has already evaluated `access_control` against the original dashboard URL, and the `routeName`…

Timeline

Published by source

2026-09-02

Risk context

• Reported severity or threat level: high.
• Reported CVSS score: 8.1 out of 10.
• Reported EPSS value: 0.0025.
• Review exposure for the affected product or family: composer: easycorp/easyadmin-bundle.

Product

composer: easycorp/easyadmin-bundle

What to do

General, cautious steps (verify details in the official source):

• Prioritize patching or mitigation immediately (treat as actively risky).
• Identify affected product versions in your inventory and verify whether you are impacted.
• Apply vendor patches/updates or recommended mitigations as soon as available.
• Read the official advisory for exact affected versions and remediation steps.

Official advisory

• Read the official source
• CVE Record
• NVD

Evidence and provenance

Canonical advisory ID

GHSA-G2FM-8HR4-J82H

Source

GitHub

Vendor

GitHub

Published by source

2026-09-02

Last source activity

2026-09-02

Additional identifiers

CVE-2026-81892

Curated by

hlukh.ch

Related advisories and connections

These advisories are connected by shared CVE, product, vendor, source, or time signals.