{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "lawnchair",
          "vendor": "LawnchairLauncher",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c fcba413f55dd47f8a3921445252849126c6266b2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-77",
              "description": "CWE-77: Improper Neutralization of Special Elements used in a Command (\u0027Command Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-21T01:19:47.510Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/LawnchairLauncher/lawnchair/security/advisories/GHSA-9prc-pp2c-3427",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/LawnchairLauncher/lawnchair/security/advisories/GHSA-9prc-pp2c-3427"
        },
        {
          "name": "https://github.com/LawnchairLauncher/lawnchair/commit/fcba413f55dd47f8a3921445252849126c6266b2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/LawnchairLauncher/lawnchair/commit/fcba413f55dd47f8a3921445252849126c6266b2"
        }
      ],
      "source": {
        "advisory": "GHSA-9prc-pp2c-3427",
        "discovery": "UNKNOWN"
      },
      "title": "Lawnchair vulnerable to Command Injection via unquoted workflow dispatch input in release_update.yml"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-39866",
    "datePublished": "2026-04-21T01:19:47.510Z",
    "dateReserved": "2026-04-07T19:13:20.379Z",
    "dateUpdated": "2026-04-21T01:19:47.510Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}