Security advisory

{
  "id": "ffc97a7bfc55ba4d3764420c018a7a286c89b3d644b96ac0fe2cd9ceaba7bcbb",
  "url": "https://osv.dev/vulnerability/CVE-2018-1000216",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-1000216",
    "summary": "Dave Gamble cJSON version 1.7.2 and earlier contains a CWE-415: Double Free vulnerability in cJSON library that can result in Possible crash or RCE. This attack appear to be exploitable via Attacker must be able to force victim to print JSON data, depending on how cJSON library is used this could be either local or over a network. This vulnerability appears to have been fixed in 1.7.3.",
    "evidence": "osv:CVE-2018-1000216",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-1000216",
      "aliases": [
        "CVE-2018-1000216"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/davegamble/cjson",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "a559eac472652e8098939af8828ff59eda3a66ae"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:davegamble:cjson:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.7.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.7.2",
            "v1.7.1",
            "v1.7.0",
            "v1.6.0",
            "v1.5.9",
            "v1.5.8",
            "v1.5.7",
            "v1.5.6",
            "v1.5.5",
            "v1.5.4",
            "v1.5.3",
            "v1.5.2",
            "v1.5.1",
            "v1.5.0",
            "v1.4.7",
            "v1.4.6",
            "v1.4.5",
            "v1.4.4",
            "v1.4.3",
            "v1.4.2",
            "v1.4.1",
            "v1.4.0",
            "v1.3.2",
            "v1.3.1",
            "v1.3.0",
            "v1.2.1",
            "v1.2.0",
            "v1.1.0",
            "v1.0.2",
            "v1.0.1",
            "v1.0.0",
            "v0.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-1000216.json",
            "vanir_signatures": [
              {
                "id": "CVE-2018-1000216-eed5b759",
                "digest": {
                  "threshold": 0.9,
                  "line_hashes": [
                    "175741754244379187423380183994691136902",
                    "116992765820216486185449116403431512872",
                    "243047185808513225516567632261043745977",
                    "202780394416609006394180268442375831096"
                  ]
                },
                "source": "https://github.com/davegamble/cjson/commit/a559eac472652e8098939af8828ff59eda3a66ae",
                "target": {
                  "file": "cJSON.c"
                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-20T13:31:51Z"
          }
        }
      ],
      "modified": "2026-10-20T13:31:51.809161097Z",
      "provider": "osv",
      "references": [
        "https://github.com/DaveGamble/cJSON/issues/241"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-1000216",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387786,
  "published_at": "2018-08-20T20:29:00.61+00:00"
}