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CVE-2026-39866— Lawnchair vulnerable to Command Injection via unquoted workflow dispatch input in release_update.yml

Quick assessment

Affected
LawnchairLauncher lawnchair
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Lawnchair是Lawnchair开源的一个安卓开源桌面启动器，支持高度自定义和Pixel功能。 Lawnchair存在安全漏洞，该漏洞源于release_update.yml工作流调度输入存在命令注入，可能导致任意代码执行。

AI Predicted 5.0 Difficulty: Easy EPSS 2.96% · P87

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2026-39866

Vulnerability Information
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Vulnerability Title
Lawnchair vulnerable to Command Injection via unquoted workflow dispatch input in release_update.yml
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Source: CVE Program / CVE List V5
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Lawnchair 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Lawnchair是Lawnchair开源的一个安卓开源桌面启动器，支持高度自定义和Pixel功能。 Lawnchair存在安全漏洞，该漏洞源于release_update.yml工作流调度输入存在命令注入，可能导致任意代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
LawnchairLauncher lawnchair < fcba413f55dd47f8a3921445252849126c6266b2 -

II. Public POCs for CVE-2026-39866

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III. Intelligence Information for CVE-2026-39866

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IV. Related Vulnerabilities

Same weakness: CWE-77