{
  "id": "CVE-2020-1956",
  "url": "https://spydr.io/cve/CVE-2020-1956",
  "published": "2020-05-22T14:15:11.840Z",
  "modified": "2026-06-17T03:02:43.010Z",
  "score": 8.8,
  "severity": "high",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "score_source": "NVD",
  "epss": 0.97337,
  "epss_percentile": 0.99897,
  "exploited": true,
  "kev": {
    "added": "2022-03-25",
    "due": "2022-04-15",
    "action": "Apply updates per vendor instructions.",
    "ransomware": "Unknown",
    "name": "Apache Kylin OS Command Injection Vulnerability",
    "notes": "https://nvd.nist.gov/vuln/detail/CVE-2020-1956"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "Apache"
  ],
  "products": [
    "Apache Kylin"
  ],
  "cwes": [
    "CWE-78"
  ],
  "description": "Apache Kylin 2.3.0, and releases up to 2.6.5 and 3.0.1 has some restful apis which will concatenate os command with the user input string, a user is likely to be able to execute any os command without any protection or validation.",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 8.8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "http://www.openwall.com/lists/oss-security/2020/07/14/1",
      "tags": [
        "Mailing List"
      ]
    },
    {
      "url": "https://community.sonarsource.com/t/apache-kylin-3-0-1-command-injection-vulnerability/25706",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://lists.apache.org/thread.html/r021baf9d8d4ae41e8c8332c167c4fa96c91b5086563d9be55d2d7acf%40%3Ccommits.kylin.apache.org%3E",
      "tags": [
        "Mailing List",
        "Patch"
      ]
    },
    {
      "url": "https://lists.apache.org/thread.html/r1332ef34cf8e2c0589cf44ad269fb1fb4c06addec6297f0320f5111d%40%3Cuser.kylin.apache.org%3E",
      "tags": [
        "Mailing List",
        "Mitigation",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://lists.apache.org/thread.html/r250a867961cfd6e0506240a9c7eaee782d84c6ab0091c7c4bc45f3eb%40%3Cannounce.apache.org%3E",
      "tags": [
        "Mailing List"
      ]
    },
    {
      "url": "https://lists.apache.org/thread.html/r250a867961cfd6e0506240a9c7eaee782d84c6ab0091c7c4bc45f3eb%40%3Cdev.kylin.apache.org%3E",
      "tags": [
        "Mailing List"
      ]
    },
    {
      "url": "https://lists.apache.org/thread.html/r250a867961cfd6e0506240a9c7eaee782d84c6ab0091c7c4bc45f3eb%40%3Cuser.kylin.apache.org%3E",
      "tags": [
        "Mailing List"
      ]
    },
    {
      "url": "https://lists.apache.org/thread.html/r61666760d8a4e8764b2d5fe158d8a48b569414480fbfadede574cdc0%40%3Ccommits.kylin.apache.org%3E",
      "tags": [
        "Mailing List",
        "Patch"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-1956",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2020-1956",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}