{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2026-88344", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-09-22T19:40:01.909Z", "dateReserved": "2026-09-10T00:00:00.000Z", "datePublished": "2026-09-22T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-09-22T19:40:01.909Z"}, "descriptions": [{"lang": "en", "value": "An out-of-bounds read vulnerability exists in the schema lexer of flatcc 4c3b999e. When an exact-length FlatBuffers schema buffer ends with a digit, the integer digit-scan loop in lex() advances past the end of the input buffer and dereferences the out-of-bounds pointer. A specially crafted schema can trigger a one-byte heap buffer over-read, resulting in application crash and denial of service."}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://github.com/dvidelabs/flatcc/issues/384"}, {"url": "https://github.com/jimjag/flatcc/commit/c1dcc8ecd1a74b1e9e724ec7dc98828a5c95528e"}], "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": "cve@mitre.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An out-of-bounds read vulnerability exists in the schema lexer of flatcc 4c3b999e. When an exact-length FlatBuffers schema buffer ends with a digit, the integer digit-scan loop in lex() advances past the end of the input buffer and dereferences the out-of-bounds pointer. A specially crafted schema can trigger a one-byte heap buffer over-read, resulting in application crash and denial of service."}], "id": "CVE-2026-88344", "lastModified": "2026-09-22T20:17:10.493", "metrics": {}, "published": "2026-09-22T20:17:10.493", "references": [{"source": "cve@mitre.org", "url": "https://github.com/dvidelabs/flatcc/issues/384"}, {"source": "cve@mitre.org", "url": "https://github.com/jimjag/flatcc/commit/c1dcc8ecd1a74b1e9e724ec7dc98828a5c95528e"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "4c3b999e"}}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "flatcc", "vendor": "dvidelabs"}], "created": "2026-09-22T20:30:07.730472+00:00", "title": "Out-of-Bounds Read in FlatBuffers Schema Lexer Causing Denial of Service", "updated": "2026-09-22T20:30:08.075093+00:00", "vendors": ["dvidelabs", "dvidelabs$PRODUCT$flatcc"], "weaknesses": ["CWE-125"]}