CVE-2026-39866 | THREATINT

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.

PUBLISHED Reserved 2026-04-07 | Published 2026-04-21 | Updated 2026-04-25 | Assigner GitHub_M

HIGH: 7.4CVSS: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

Problem types

CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')

Product status

< fcba413f55dd47f8a3921445252849126c6266b2

affected

References

github.com/...nchair/security/advisories/GHSA-9prc-pp2c-3427 exploit

github.com/...nchair/security/advisories/GHSA-9prc-pp2c-3427

github.com/...ommit/fcba413f55dd47f8a3921445252849126c6266b2

cve.org (CVE-2026-39866)

nvd.nist.gov (CVE-2026-39866)

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