{"id":"CVE-2020-37280","revision":"2083c922e4574a0b8f093f12d641495d","records":[{"revision":"2083c922e4574a0b8f093f12d641495d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2020-37280","aliases":[],"title":"cbor-sync through 1.0.4 Memory Exhaustion via Unchecked CBOR Array Lengths","description":"cbor-sync through 1.0.4 contains a resource exhaustion vulnerability in CBOR.decode that trusts declared array and map lengths without checking remaining input. Remote attackers can supply a tiny crafted CBOR payload declaring huge lengths to drive billions of iterations, exhausting CPU and process memory.","state":0,"publishedAt":"2026-10-12T20:55:04.662+00:00","modifiedAt":"2026-10-13T16:52:41.604+00:00","affected":[{"ecosystem":"Vendor product","name":"cbor-sync","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"PelionIoT\",\n                    \"product\": \"cbor-sync\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThanOrEqual\": \"1.0.4\"\n                        }\n                    ],\n                    \"packageURL\": \"pkg:npm/cbor-sync\",\n                    \"repo\": \"https://github.com/PelionIoT/cbor-sync\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.7,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/PelionIoT/cbor-sync/pull/4","https://github.com/PelionIoT/cbor-sync/issues/6","https://github.com/PelionIoT/cbor-sync","https://www.vulncheck.com/advisories/cbor-sync-through-1.0.4-memory-exhaustion-via-unchecked-cbor-array-lengths"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2020-37280","license":"CVE Program Terms of Use","key":"cve-program:CVE-2020-37280","identifiers":["CVE-2020-37280"]},"retained":false,"historicalAffected":[]}],"coverage":[]}