{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-59171", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-02T16:50:27.888Z", "datePublished": "2026-11-06T20:12:34.624Z", "dateUpdated": "2026-11-06T20:12:34.624Z"}, "containers": {"cna": {"title": "JSON-java: JSONTokener Unbounded Numeric String Resource-Exhaustion DoS", "problemTypes": [{"descriptions": [{"cweId": "CWE-400", "lang": "en", "description": "CWE-400: Uncontrolled Resource Consumption", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-770", "lang": "en", "description": "CWE-770: Allocation of Resources Without Limits or Throttling", "type": "CWE"}]}], "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"}}], "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"}], "affected": [{"vendor": "stleary", "product": "JSON-java", "versions": [{"version": ">= 20150729, < 20260719", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-11-06T20:12:34.624Z"}, "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."}], "source": {"advisory": "GHSA-ghc9-756g-vrcv", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "JSON-java", "vendor": "stleary", "versions": [{"status": "affected", "version": ">= 20150729, < 20260719"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "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."}], "id": "CVE-2026-59171", "lastModified": "2026-11-06T21:17:09.390", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-11-06T21:17:09.390", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/stleary/JSON-java/commit/703ac34a55400f9c50889e3d0c778b6d7962e81c"}, {"source": "security-advisories@github.com", "url": "https://github.com/stleary/JSON-java/commit/ab92bb9088a37f9e346cd1dda66f6a3c40a201e0"}, {"source": "security-advisories@github.com", "url": "https://github.com/stleary/JSON-java/commit/fce83c91bb229dde472283dea648a9a8955237fd"}, {"source": "security-advisories@github.com", "url": "https://github.com/stleary/JSON-java/pull/1065"}, {"source": "security-advisories@github.com", "url": "https://github.com/stleary/JSON-java/pull/1067"}, {"source": "security-advisories@github.com", "url": "https://github.com/stleary/JSON-java/releases/tag/20260719"}, {"source": "security-advisories@github.com", "url": "https://github.com/stleary/JSON-java/security/advisories/GHSA-ghc9-756g-vrcv"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}, {"lang": "en", "value": "CWE-770"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[20150729,20260719)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "JSON-java", "source": "cna", "vendor": "stleary"}, "product": "json-java", "vendor": "stleary"}], "created": "2026-11-06T21:38:39.322298+00:00", "updated": "2026-11-06T21:45:10.098380+00:00", "vendors": ["stleary", "stleary$PRODUCT$json-java"]}