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CVE-2023-26819

Estado: ModificadaBaja (2.9)—

cJSON 1.7.15 might allow a denial of service via a crafted JSON document such as {"a": true, "b": [ null,9999999999999999999999999999999999999999999999912345678901234567]}.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Cjson Project — Cjson

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2023-26819",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-26819",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-21T15:08:15.987157Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cve@mitre.org",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 2.9,
          "attackVector": "LOCAL",
          "baseSeverity": "LOW",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 1.4
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "cJSON Project",
          "product": "cJSON",
          "versions": [
            {
              "status": "affected",
              "version": "1.7.15",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2025-04-19T22:15:14.103",
  "references": [
    {
      "url": "https://github.com/boofish/json_bugs/tree/main/cjson",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2025/06/msg00014.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cve@mitre.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-440"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "cJSON 1.7.15 might allow a denial of service via a crafted JSON document such as {\"a\": true, \"b\": [ null,9999999999999999999999999999999999999999999999912345678901234567]}."
    },
    {
      "lang": "es",
      "value": "cJSON 1.7.15 podría permitir una denegación de servicio a través de un documento JSON manipulado como {\"a\": true, \"b\": [ null,99999999999999999999999999999999999999999999912345678901234567]}."
    }
  ],
  "lastModified": "2026-06-17T05:43:50.840",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cjson_project:cjson:1.7.15:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4BE8F553-8284-4077-A5AB-6DC1B7DCB3FF"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}