Security advisory

{
  "id": "faff1406c11011e4a86b740f362306a3f861cb77499b47e9efa4f6b595f3f5c3",
  "url": "https://osv.dev/vulnerability/CVE-2020-24916",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-24916",
    "summary": "CGI implementation in Yaws web server versions 1.81 to 2.0.7 is vulnerable to OS command injection.",
    "evidence": "osv:CVE-2020-24916",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2020-24916",
      "aliases": [
        "CVE-2020-24916"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/erlyaws/yaws",
              "type": "GIT",
              "events": [
                {
                  "introduced": "54139d81eba1c9200c6b07f65bdba03a301cd3c2"
                },
                {
                  "last_affected": "c5aa1e300105578f3c3c025b367f4d2725ae5b5d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:yaws:yaws:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.81"
                      },
                      {
                        "last_affected": "2.0.7"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "yaws-2.0.7",
            "yaws-2.0.6",
            "yaws-2.0.5",
            "yaws-2.0.4",
            "yaws-2.0.3",
            "yaws-2.0.2",
            "yaws-2.0",
            "yaws-erlang-18",
            "yaws-1.99",
            "yaws-1.98",
            "yaws-1.97",
            "yaws-1.96",
            "yaws-1.95",
            "yaws-1.94",
            "yaws-1.93",
            "yaws-1.90",
            "yaws-1.89",
            "yaws-1.88",
            "yaws-1.85",
            "yaws-1.84",
            "yaws-1.83",
            "yaws-1.81"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-24916.json"
          }
        }
      ],
      "modified": "2026-10-20T10:52:52.249726172Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2020/09/msg00022.html",
        "https://usn.ubuntu.com/4569-1/",
        "https://www.debian.org/security/2020/dsa-4773",
        "https://github.com/erlyaws/yaws/commits/master",
        "https://github.com/vulnbe/poc-yaws-cgi-shell-injection",
        "https://packetstormsecurity.com/files/159106/Yaws-2.0.7-XML-Injection-Command-Injection.html",
        "https://vuln.be/post/yaws-xxe-and-shell-injections/"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*"
            ],
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "18.04"
                  },
                  {
                    "last_affected": "18.04"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  },
                  {
                    "introduced": "10.0"
                  },
                  {
                    "last_affected": "10.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-24916",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 383975,
  "published_at": "2020-09-09T19:15:21.147+00:00"
}