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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "JSON-java",
          "vendor": "stleary",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 20150729, \u003c 20260719"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "JSON-java is a reference implementation of a JSON package in Java. From version 20150729 through 20260522, JSONTokener.nextSimpleValue can accumulate unbounded numeric tokens before JSONObject.stringToNumber passes them to BigInteger or BigDecimal conversion without a length limit. An application that parses attacker-controlled JSON or XML through JSONObject, JSONArray, or XML.toJSONObject can spend super-linear CPU time converting a sufficiently long numeric literal, blocking request-handling threads and causing denial of service. Strict mode and keep-strings settings in JSONParserConfiguration do not prevent the affected conversion path. Version 20260719 limits numeric conversion length."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-770",
              "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-11-06T20:12:34.624Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/stleary/JSON-java/security/advisories/GHSA-ghc9-756g-vrcv",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/stleary/JSON-java/security/advisories/GHSA-ghc9-756g-vrcv"
        },
        {
          "name": "https://github.com/stleary/JSON-java/pull/1065",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/stleary/JSON-java/pull/1065"
        },
        {
          "name": "https://github.com/stleary/JSON-java/pull/1067",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/stleary/JSON-java/pull/1067"
        },
        {
          "name": "https://github.com/stleary/JSON-java/commit/703ac34a55400f9c50889e3d0c778b6d7962e81c",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/stleary/JSON-java/commit/703ac34a55400f9c50889e3d0c778b6d7962e81c"
        },
        {
          "name": "https://github.com/stleary/JSON-java/commit/ab92bb9088a37f9e346cd1dda66f6a3c40a201e0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/stleary/JSON-java/commit/ab92bb9088a37f9e346cd1dda66f6a3c40a201e0"
        },
        {
          "name": "https://github.com/stleary/JSON-java/commit/fce83c91bb229dde472283dea648a9a8955237fd",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/stleary/JSON-java/commit/fce83c91bb229dde472283dea648a9a8955237fd"
        },
        {
          "name": "https://github.com/stleary/JSON-java/releases/tag/20260719",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/stleary/JSON-java/releases/tag/20260719"
        }
      ],
      "source": {
        "advisory": "GHSA-ghc9-756g-vrcv",
        "discovery": "UNKNOWN"
      },
      "title": "JSON-java: JSONTokener Unbounded Numeric String Resource-Exhaustion DoS"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-59171",
    "datePublished": "2026-11-06T20:12:34.624Z",
    "dateReserved": "2026-07-02T16:50:27.888Z",
    "dateUpdated": "2026-11-06T20:12:34.624Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}