{"id":"CVE-2020-26800","details":"A stack overflow vulnerability in Aleth Ethereum C++ client version \u003c= 1.8.0 using a specially crafted a config.json file may result in a denial of service.","modified":"2026-07-09T00:13:51.486842Z","published":"2021-01-11T13:15:13.260Z","references":[{"type":"ADVISORY","url":"https://ethereum.org/en/about/"},{"type":"ADVISORY","url":"https://github.com/ethereum/aleth"},{"type":"EVIDENCE","url":"https://github.com/ethereum/aleth/issues/5917"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ethereum/aleth","events":[{"introduced":"0"},{"last_affected":"255a75ec4fc8ed7fce3449404595d7589d5d907f"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:ethereum:aleth:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"1.8.0"}]}}],"versions":["v1.8.0","v1.8.0-alpha.3","v1.8.0-alpha.2","v1.8.0-alpha.1","v1.8.0-alpha.0","v1.7.0-alpha.2","v1.7.0-alpha.1","v1.7.0-alpha.logfix","v1.7.0-alpha.0","v1.6.0-alpha.1","v1.6.0-alpha.0","v1.5.0-alpha.7","v1.5.0-alpha.6","v1.5.0-alpha.5","v1.5.0-alpha.4","v1.5.0-alpha.3","build-env-v6","build-env-v5","build-env-v4","v1.5.0.dev2","v1.5.0.dev1","v1.5.0.dev0","v1.4.0.dev1","v1.4.0.dev0","build-env-v1","solidityTester","v1.3.0","poc-7","poc-5+","poc-5","poc-4","0.3.10","release-poc-3"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-26800.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}