Security advisory

{
  "id": "ad089d966745714178edafb0d27ac3b0e94d939b877cec350ded563d1f66e119",
  "url": "https://osv.dev/vulnerability/CVE-2026-33566",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-33566",
    "summary": "There is a cypher injection issue in LogonTracer prior to v2.0.0. If specially crafted Windows event log data is loaded, the contents of the database may be altered.",
    "evidence": "osv:CVE-2026-33566",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-33566",
      "aliases": [
        "CVE-2026-33566"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/jpcertcc/logontracer",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "c97edf79accac73e222c01b8f5a0b538319b857a"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:jpcert:logontracer:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.0.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.6.1",
            "v1.6.0",
            "v1.5.4",
            "v1.5.3",
            "v1.5.2",
            "v1.5.1",
            "v1.5.0",
            "v1.4.2",
            "v1.4.1",
            "v1.4.0",
            "v1.3.1",
            "v1.3.0",
            "v1.2.1",
            "v1.2.0",
            "v1.1.1",
            "v1.1.0",
            "v1.0.3",
            "v1.0.2",
            "v1.0.1",
            "v1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33566.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:32.488127452Z",
      "provider": "osv",
      "references": [
        "https://jvn.jp/en/jp/JVN57877356/",
        "https://www.jpcert.or.jp/press/2026/PR20260423.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33566.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-33566"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-943"
        ],
        "cna_assigner": "jpcert",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "2.0.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "VersionTextExtraction"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33566.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-33566",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 499692,
  "published_at": "2026-04-27T00:04:23.709+00:00"
}