Security advisory

{
  "id": "b49a01d487c17a89a4e85556b17fe72daccf493ab615cf3e6929c896e8214253",
  "url": "https://osv.dev/vulnerability/CVE-2020-26566",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-26566",
    "summary": "A Denial of Service condition in Motion-Project Motion 3.2 through 4.3.1 allows remote unauthenticated users to cause a webu.c segmentation fault and kill the main process via a crafted HTTP request.",
    "evidence": "osv:CVE-2020-26566",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-26566",
      "aliases": [
        "CVE-2020-26566"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/motion-project/motion",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "f042807d77e1550c081a22e69637f8998c28c0b0"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:motion_project:motion:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "3.2"
                      },
                      {
                        "last_affected": "4.3.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "release-4.3.1",
            "release-4.3.0",
            "Release-4.3.0",
            "release-4.2",
            "release-4.1",
            "release-4.0",
            "release-3.4.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-26566.json"
          }
        }
      ],
      "modified": "2026-10-20T10:52:58.989945526Z",
      "provider": "osv",
      "references": [
        "https://motion-project.github.io/index.html",
        "https://github.com/Motion-Project/motion/releases",
        "https://security.gentoo.org/glsa/202208-18",
        "https://github.com/Motion-Project/motion/issues/1227#issuecomment-715927776"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-26566",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 384118,
  "published_at": "2020-10-26T18:15:14.747+00:00"
}