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CVE-2026-87933

Estado: AplazadaMedia (5.5)—

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.

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)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Davegamble — CjsonAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-87933",
  "cveTags": [],
  "metrics": {
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-87933",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-10T17:51:16.285890Z"
        }
      }
    ],
    "cvssMetricV2": [
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        "type": "Secondary",
        "source": "cna@vuldb.com",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "cna@vuldb.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
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          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "integrityImpact": "LOW",
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          "attackComplexity": "LOW",
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        "exploitabilityScore": 3.9
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "cna@vuldb.com",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 5.5,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "LOW",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "vulnAvailabilityImpact": "LOW",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
      }
    ]
  },
  "affected": [
    {
      "source": "cna@vuldb.com",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:davegamble:cjson:*:*:*:*:*:*:*:*"
          ],
          "vendor": "DaveGamble",
          "product": "cJSON",
          "versions": [
            {
              "status": "affected",
              "version": "1.7.0"
            },
            {
              "status": "affected",
              "version": "1.7.1"
            },
            {
              "status": "affected",
              "version": "1.7.2"
            },
            {
              "status": "affected",
              "version": "1.7.3"
            },
            {
              "status": "affected",
              "version": "1.7.4"
            },
            {
              "status": "affected",
              "version": "1.7.5"
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            {
              "status": "affected",
              "version": "1.7.6"
            },
            {
              "status": "affected",
              "version": "1.7.7"
            },
            {
              "status": "affected",
              "version": "1.7.8"
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            {
              "status": "affected",
              "version": "1.7.9"
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              "status": "affected",
              "version": "1.7.10"
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            {
              "status": "affected",
              "version": "1.7.11"
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            {
              "status": "affected",
              "version": "1.7.12"
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            {
              "status": "affected",
              "version": "1.7.13"
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            {
              "status": "affected",
              "version": "1.7.14"
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            {
              "status": "affected",
              "version": "1.7.15"
            },
            {
              "status": "affected",
              "version": "1.7.16"
            },
            {
              "status": "affected",
              "version": "1.7.17"
            },
            {
              "status": "affected",
              "version": "1.7.18"
            },
            {
              "status": "affected",
              "version": "1.7.19"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-09-10T01:16:35.650",
  "references": [
    {
      "url": "https://github.com/DaveGamble/cJSON/",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://github.com/DaveGamble/cJSON/issues/1060",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://github.com/DaveGamble/cJSON/pull/1065",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/cve/CVE-2026-87933",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/submit/911136",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/vuln/401815",
      "source": "cna@vuldb.com"
    },
    {
      "url": "https://vuldb.com/vuln/401815/cti",
      "source": "cna@vuldb.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cna@vuldb.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        },
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    }
  ],
  "lastModified": "2026-09-10T20:17:31.073",
  "sourceIdentifier": "cna@vuldb.com"
}