{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "source": "REFERENCES"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "fcba413f55dd47f8a3921445252849126c6266b2"
            }
          ],
          "repo": "https://github.com/lawnchairlauncher/lawnchair",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-9prc-pp2c-3427"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-77"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39866.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "fixed": "fcba413f55dd47f8a3921445252849126c6266b2"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "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.",
  "id": "CVE-2026-39866",
  "modified": "2026-07-08T05:39:05.364013623Z",
  "published": "2026-04-21T01:19:47.510Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39866.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/LawnchairLauncher/lawnchair/security/advisories/GHSA-9prc-pp2c-3427"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39866"
    },
    {
      "type": "FIX",
      "url": "https://github.com/LawnchairLauncher/lawnchair/commit/fcba413f55dd47f8a3921445252849126c6266b2"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Lawnchair vulnerable to Command Injection via unquoted workflow dispatch input in release_update.yml"
}