{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "1.7.0"
              },
              {
                "last_affected": "1.7.0"
              },
              {
                "introduced": "1.7.1"
              },
              {
                "last_affected": "1.7.1"
              },
              {
                "introduced": "1.7.2"
              },
              {
                "last_affected": "1.7.2"
              },
              {
                "introduced": "1.7.3"
              },
              {
                "last_affected": "1.7.3"
              },
              {
                "introduced": "1.7.4"
              },
              {
                "last_affected": "1.7.4"
              },
              {
                "introduced": "1.7.5"
              },
              {
                "last_affected": "1.7.5"
              },
              {
                "introduced": "1.7.6"
              },
              {
                "last_affected": "1.7.6"
              },
              {
                "introduced": "1.7.7"
              },
              {
                "last_affected": "1.7.7"
              },
              {
                "introduced": "1.7.8"
              },
              {
                "last_affected": "1.7.8"
              },
              {
                "introduced": "1.7.9"
              },
              {
                "last_affected": "1.7.9"
              },
              {
                "introduced": "1.7.10"
              },
              {
                "last_affected": "1.7.10"
              },
              {
                "introduced": "1.7.11"
              },
              {
                "last_affected": "1.7.11"
              },
              {
                "introduced": "1.7.12"
              },
              {
                "last_affected": "1.7.12"
              },
              {
                "introduced": "1.7.13"
              },
              {
                "last_affected": "1.7.13"
              },
              {
                "introduced": "1.7.14"
              },
              {
                "last_affected": "1.7.14"
              },
              {
                "introduced": "1.7.15"
              },
              {
                "last_affected": "1.7.15"
              },
              {
                "introduced": "1.7.16"
              },
              {
                "last_affected": "1.7.16"
              },
              {
                "introduced": "1.7.17"
              },
              {
                "last_affected": "1.7.17"
              },
              {
                "introduced": "1.7.18"
              },
              {
                "last_affected": "1.7.18"
              },
              {
                "introduced": "1.7.19"
              },
              {
                "last_affected": "1.7.19"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "984dc85a5f90e5fa2ec98f15db8ad96613c543b6"
            },
            {
              "last_affected": "c859b25da02955fef659d658b8f324b5cde87be3"
            }
          ],
          "repo": "https://github.com/davegamble/cjson",
          "type": "GIT"
        }
      ],
      "versions": [
        "1.7.0",
        "1.7.1",
        "1.7.10",
        "1.7.11",
        "1.7.12",
        "1.7.13",
        "1.7.14",
        "1.7.15",
        "1.7.16",
        "1.7.17",
        "1.7.18",
        "1.7.19",
        "1.7.2",
        "1.7.3",
        "1.7.4",
        "1.7.5",
        "1.7.6",
        "1.7.7",
        "1.7.8",
        "1.7.9"
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulDB",
    "cwe_ids": [
      "CWE-119",
      "CWE-416"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/87xxx/CVE-2026-87933.json"
  },
  "details": "A vulnerability was found in DaveGamble cJSON up to 1.7.19. The affected element is the function cJSONUtils_MergePatch of the file cJSON_Utils.c. The manipulation results in use after free. The attack may be launched remotely. The exploit has been made public and could be used. The pull request to fix this issue awaits acceptance.",
  "id": "CVE-2026-87933",
  "modified": "2026-09-12T03:30:58.542724972Z",
  "published": "2026-09-10T00:15:08.473Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/DaveGamble/cJSON/"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/87xxx/CVE-2026-87933.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-87933"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/cve/CVE-2026-87933"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/submit/911136"
    },
    {
      "type": "ADVISORY",
      "url": "https://vuldb.com/vuln/401815"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/DaveGamble/cJSON/issues/1060"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/vuln/401815/cti"
    },
    {
      "type": "FIX",
      "url": "https://github.com/DaveGamble/cJSON/pull/1065"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "DaveGamble cJSON cJSON_Utils.c cJSONUtils_MergePatch use after free"
}