High 7.4Published Apr 20, 2026

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

Updated under an hour ago (Oct 28, 2026, 8:30 AM ET)

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It affects LawnchairLauncher lawnchair and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for LawnchairLauncher lawnchair

Exploited in the last 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.

CVSS: 7.4 HIGH (v4.0, CNA)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
Weakness (CWE): CWE-77
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Apr 24, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

LawnchairLauncher lawnchair lawnchairlauncher:lawnchair (from the name)	before fcba413f55dd47f8a3921445252849126c6266b2	CNA record
lawnchair lawnchair lawnchair:lawnchair	through 15.0.0	NVD

References

References

https://github.com/LawnchairLauncher/lawnchair/security/advisories/GHSA-9prc-pp2c-3427	x-refsource-confirm, exploit, vendor-advisory
https://github.com/LawnchairLauncher/lawnchair/commit/fcba413f55dd47f8a3921445252849126c6266b2	x-refsource-misc, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.