Pivotick - Stack Exhaustion Denial of Service via Deep or Cyclic Graph Data

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-66920",
    "assignerOrgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
    "assignerShortName": "CIRCL",
    "dateUpdated": "2026-07-28T12:57:21.098Z",
    "dateReserved": "2026-07-28T12:57:17.742Z",
    "datePublished": "2026-07-28T12:57:21.098Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
        "shortName": "CIRCL",
        "dateUpdated": "2026-07-28T12:57:21.098Z"
      },
      "title": "Pivotick - Stack Exhaustion Denial of Service via Deep or Cyclic Graph Data",
      "descriptions": [
        {
          "lang": "en",
          "value": "Pivotick contains an uncontrolled-recursion vulnerability when processing caller-supplied graph and node data. The affected graph algorithms recursively traversed graph edges, while the JSON viewer recursively processed each level of a node’s data structure. A specially crafted graph containing an excessively long path, deeply nested properties, or circular object references could therefore exhaust the JavaScript call stack when Pivotick calculates a layout or displays a node in the inspection modal.\n\nSuccessful exploitation may cause an uncaught exception, freeze the affected page, or crash the browser tab, resulting in a client-side denial of service. No confidentiality or integrity impact has been identified.\n\nThe patch replaces the recursive graph traversals with iterative stack-based implementations and limits the reachability calculation to 1,000,000 edge traversals. It also limits JSON rendering to 64 levels and detects circular references before descending further into an object.",
          "supportingMedia": [
            {
              "type": "text/html",
              "base64": false,
              "value": "<h2></h2><p>Pivotick contains an uncontrolled-recursion vulnerability when processing caller-supplied graph and node data. The affected graph algorithms recursively traversed graph edges, while the JSON viewer recursively processed each level of a node’s data structure. A specially crafted graph containing an excessively long path, deeply nested properties, or circular object references could therefore exhaust the JavaScript call stack when Pivotick calculates a layout or displays a node in the inspection modal.</p><p>Successful exploitation may cause an uncaught exception, freeze the affected page, or crash the browser tab, resulting in a client-side denial of service. No confidentiality or integrity impact has been identified.</p><p>The patch replaces the recursive graph traversals with iterative stack-based implementations and limits the reachability calculation to 1,000,000 edge traversals. It also limits JSON rendering to 64 levels and detects circular references before descending further into an object.</p><br>"
            }
          ]
        }
      ],
      "affected": [
        {
          "vendor": "Pivotick",
          "product": "Pivotick",
          "repo": "https://github.com/Pivotick/Pivotick/",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "1.4.0"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-674 Uncontrolled Recursion",
              "cweId": "CWE-674",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-400 Uncontrolled Resource Consumption",
              "cweId": "CWE-400",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://github.com/Pivotick/Pivotick/commit/66373141eb7892fc29a3b42cfb2c160af16765fe",
          "tags": [
            "patch"
          ]
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-231",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-231 Oversized Serialized Data Payloads"
            }
          ]
        }
      ],
      "metrics": [
        {
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Jeroen Pinoy",
          "type": "finder"
        },
        {
          "lang": "en",
          "value": "Sami Mokaddem",
          "type": "remediation developer"
        }
      ]
    }
  }
}