{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2026-88358", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-09-24T15:33:43.408Z", "dateReserved": "2026-09-10T00:00:00.000Z", "datePublished": "2026-09-24T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-09-24T15:33:43.408Z"}, "descriptions": [{"lang": "en", "value": "simdjson 4.6.1 contains a one-byte out-of-bounds read vulnerability in dom::parser::parse_unpadded(). A specially crafted truncated JSON document whose final structural token closes a nested array or object can cause json_iterator::walk_document() to access buf[len] after the input buffer has been exhausted. This results in a heap out-of-bounds read and may cause application termination, leading to denial of service."}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://github.com/simdjson/simdjson/issues/2815"}, {"url": "https://github.com/simdjson/simdjson/pull/2817"}, {"url": "https://github.com/simdjson/simdjson/commit/20b28712ffce8320237b75a587d35a2e89140577"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}}, "dataVersion": "5.2"}

{}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "simdjson 4.6.1 contains a one-byte out-of-bounds read vulnerability in dom::parser::parse_unpadded(). A specially crafted truncated JSON document whose final structural token closes a nested array or object can cause json_iterator::walk_document() to access buf[len] after the input buffer has been exhausted. This results in a heap out-of-bounds read and may cause application termination, leading to denial of service."}], "id": "CVE-2026-88358", "lastModified": "2026-09-24T21:08:22.573", "metrics": {}, "published": "2026-09-24T16:17:13.090", "references": [{"source": "[email protected]", "url": "https://github.com/simdjson/simdjson/commit/20b28712ffce8320237b75a587d35a2e89140577"}, {"source": "[email protected]", "url": "https://github.com/simdjson/simdjson/issues/2815"}, {"source": "[email protected]", "url": "https://github.com/simdjson/simdjson/pull/2817"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Awaiting Analysis"}

{}

{"created": "2026-09-26T03:15:04.182303+00:00", "title": "Out-of-Bounds Read in simdjson Parser Leading to Denial of Service", "updated": "2026-09-26T03:15:04.182310+00:00", "vendors": [], "weaknesses": ["CWE-119", "CWE-20"]}