CVE-2026-39866HIGH 8.8EPSS p81.5%

CVE-2026-39866CVE-2026-39866

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.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS2.35% probability of exploitation · percentile 81.5% · 2026-06-18T12:00:27Z
Published2026-04-21
Last modified2026-04-23

Underlying weaknesses· 1

CWE-77

References

  1. https://github.com/LawnchairLauncher/lawnchair/commit/fcba413f55dd47f8a3921445252849126c6266b2
  2. https://github.com/LawnchairLauncher/lawnchair/security/advisories/GHSA-9prc-pp2c-3427
  3. https://github.com/LawnchairLauncher/lawnchair/security/advisories/GHSA-9prc-pp2c-3427

1

TypeTargetConfidenceTier
WeaknessImproper Neutralization of Special Elements used in a Command ('Command Injection')cwe-770%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2026-21033
CVE
CVE-2026-21032
CVE
CVE-2026-49185
CVE
CVE-2026-28470
CVE
CVE-2026-36576
CVE
CVE-2026-4580
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.