{"cve":"CVE-2020-26242","nvd":{"published":"2020-11-25T02:15:11.127","modified":"2026-06-17T03:07:54.180","status":"Modified","description":"Go Ethereum, or \"Geth\", is the official Golang implementation of the Ethereum protocol. In Geth before version 1.9.18, there is a Denial-of-service (crash) during block processing. This is fixed in 1.9.18.","cvss_v4":null,"cvss_v3":{"version":"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},"cwes":[],"references":["https://blog.ethereum.org/2020/11/12/geth_security_release/","https://github.com/ethereum/go-ethereum/security/advisories/GHSA-jm5c-rv3w-w83m","https://blog.ethereum.org/2020/11/12/geth_security_release/","https://github.com/ethereum/go-ethereum/security/advisories/GHSA-jm5c-rv3w-w83m"],"products":["ethereum:go_ethereum"],"source":"nvd","synced_at":"2026-10-19T21:11:20.317016139+00:00"},"epss":{"cve":"CVE-2020-26242","score":0.0148,"percentile":0.73923,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-jm5c-rv3w-w83m","url":"https://osv.dev/vulnerability/GHSA-jm5c-rv3w-w83m","summary":"Denial of service in geth","modified":"2026-07-08T05:59:51.548470893Z","packages":[{"ecosystem":"Go","name":"github.com/ethereum/go-ethereum","purl":"pkg:golang/github.com/ethereum/go-ethereum","ranges":[">=1.9.16 <1.9.18"],"fixed":["1.9.18"]},{"ecosystem":"Go","name":"github.com/holiman/uint256","purl":"pkg:golang/github.com/holiman/uint256","ranges":[">=0.1.0 <1.1.1"],"fixed":["1.1.1"]}]},{"id":"GO-2021-0103","url":"https://osv.dev/vulnerability/GO-2021-0103","summary":"Denial of service in github.com/holiman/uint256","modified":"2024-05-20T16:03:47Z","packages":[{"ecosystem":"Go","name":"github.com/holiman/uint256","purl":"pkg:golang/github.com/holiman/uint256","ranges":[">=0.1.0 <1.1.1"],"fixed":["1.1.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}