CVE-2026-39866

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/LawnchairLauncher/lawnchair/commit/fcba413f55dd47f8a3921445252849126c6266b2	Patch
https://github.com/LawnchairLauncher/lawnchair/security/advisories/GHSA-9prc-pp2c-3427	Exploit Vendor Advisory
https://github.com/LawnchairLauncher/lawnchair/security/advisories/GHSA-9prc-pp2c-3427	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:lawnchair:lawnchair:*:*:*:*:*:*:*:*

History

23 Apr 2026, 18:26

Type	Values Removed	Values Added
CPE		cpe:2.3:a:lawnchair:lawnchair::::::::
First Time		Lawnchair lawnchair Lawnchair
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.8
References	~~() https://github.com/LawnchairLauncher/lawnchair/commit/fcba413f55dd47f8a3921445252849126c6266b2 -~~	() https://github.com/LawnchairLauncher/lawnchair/commit/fcba413f55dd47f8a3921445252849126c6266b2 - Patch
References	~~() https://github.com/LawnchairLauncher/lawnchair/security/advisories/GHSA-9prc-pp2c-3427 -~~	() https://github.com/LawnchairLauncher/lawnchair/security/advisories/GHSA-9prc-pp2c-3427 - Exploit, Vendor Advisory

21 Apr 2026, 20:16

Type	Values Removed	Values Added
References	~~() https://github.com/LawnchairLauncher/lawnchair/security/advisories/GHSA-9prc-pp2c-3427 -~~	() https://github.com/LawnchairLauncher/lawnchair/security/advisories/GHSA-9prc-pp2c-3427 -

21 Apr 2026, 02:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-21 02:16

Updated : 2026-04-23 18:26

NVD link : CVE-2026-39866

Mitre link : CVE-2026-39866

CVE.ORG link : CVE-2026-39866

JSON object : View

Products Affected

lawnchair

lawnchair

CWE

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

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