CVE-2026-39866: Lawnchair

High severity, CVSS 8.8. EPSS: 3% chance of exploitation in the next 30 days.

Lawnchair is a free, open-source home app for Android. Prior to commit fcba413f55dd47f8a3921445252849126c6266b2, command injection in release_update.yml workflow dispatch input allows arbitrary code execution. Commit fcba413f55dd47f8a3921445252849126c6266b2 patches the issue.

Affected products

• Lawnchair Lawnchair: up to and including 15.0.0

Published 2026-04-21. Last modified 2026-06-17.