Security advisory

{
  "id": "ffdaaca97ad5fd248d7d0466dc15e316b3274784387ef990f49f62c6c589b523",
  "url": "https://osv.dev/vulnerability/CVE-2018-1000824",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-1000824",
    "summary": "MegaMek version < v0.45.1 contains a Other/Unknown vulnerability in Object Stream Connection that can result in Disclosure of confidential data, denial of service, SSRF, remote code execution.",
    "evidence": "osv:CVE-2018-1000824",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2018-1000824",
      "aliases": [
        "CVE-2018-1000824"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/megamek/megamek",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "edff3bfb5f65f50dda3c1f59aab0453f46f64cee"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:megamek:megamek:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.45.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.45.0",
            "v0.44.0",
            "v0.43.11",
            "v0.43.10",
            "v0.43.9",
            "v0.43.8",
            "v0.43.7-RC1",
            "v0.43.6",
            "v0.43.5",
            "v0.43.4",
            "v0.43.3",
            "v0.43.2",
            "v0.43.1",
            "v0.43.0",
            "v0.42.0",
            "v0.41.28",
            "v0.41.27",
            "v0.41.26",
            "0.41.25",
            "v0.41.24",
            "v0.41.23",
            "v0.41.22",
            "v0.41.21",
            "v0.41.20",
            "v0.41.19",
            "v0.41.17",
            "v0.41.15",
            "v0.41.14"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-1000824.json",
            "vanir_signatures": [
              {
                "id": "CVE-2018-1000824-24ebe458",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "63215383161821587048219324054287523861",
                    "245976165063902565407266002518803907079",
                    "76290510814507453856507580212220918992",
                    "318065962559192181273929598143927617311"
                  ]
                },
                "source": "https://github.com/megamek/megamek/commit/edff3bfb5f65f50dda3c1f59aab0453f46f64cee",
                "target": {
                  "file": "megamek/src/megamek/MegaMek.java"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:45:07Z"
          }
        }
      ],
      "modified": "2026-10-20T13:45:07.701120018Z",
      "provider": "osv",
      "references": [
        "https://0dd.zone/2018/10/28/megamek-Object-Injection/",
        "https://github.com/MegaMek/megamek/issues/1162"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-1000824",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 388060,
  "published_at": "2018-12-20T15:29:00.97+00:00"
}