Security advisory

{
  "id": "b6e47608e03094ebee6d74d516d66842b845be7dbf518b6547e38bdd66318249",
  "url": "https://osv.dev/vulnerability/CVE-2021-31804",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-31804",
    "summary": "LeoCAD before 21.03 sometimes allows a use-after-free during the opening of a new document.",
    "evidence": "osv:CVE-2021-31804",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-31804",
      "aliases": [
        "CVE-2021-31804"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/leozide/leocad",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6ef3fe5500a2e0b0d72cd5c3edf0a07574ebcf59"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:leocad:leocad:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "21.03"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v21.01",
            "v19.07.1",
            "v19.07",
            "v18.02",
            "v18.01",
            "v17.07",
            "v17.02",
            "v0.83.2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-31804.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:43.068255259Z",
      "provider": "osv",
      "references": [
        "https://github.com/leozide/leocad/issues/645"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-31804",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385976,
  "published_at": "2021-04-26T08:15:07.183+00:00"
}