{"action":"Upgrade github.com/ethereum/go-ethereum to 1.9.24 or later.","affected":[{"fixed":"1.9.24","introduced":"0"}],"component":"github.com/ethereum/go-ethereum","cve_ids":["CVE-2020-26240"],"ecosystem":"Go","epss":0.01863,"exploited":false,"fixed_versions":["1.9.24"],"ghsa_id":"GHSA-v592-xf75-856p","id":"tcs_01M5KFNK8SSH8K69VPFMFEDVJN","modified_at":"2026-09-10T03:49:06.349442645Z","published_at":"2021-06-29T21:12:56Z","references":["https://osv.dev/vulnerability/GHSA-v592-xf75-856p","https://github.com/ethereum/go-ethereum/security/advisories/GHSA-v592-xf75-856p","https://nvd.nist.gov/vuln/detail/CVE-2020-26240","https://github.com/ethereum/go-ethereum/pull/21793","https://github.com/ethereum/go-ethereum/commit/d990df909d7839640143344e79356754384dcdd0","https://blog.ethereum.org/2020/11/12/geth_security_release","https://github.com/ethereum/go-ethereum"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"GHSA-v592-xf75-856p","url":"https://osv.dev/vulnerability/GHSA-v592-xf75-856p"}],"summary":"Erroneous Proof of Work calculation in geth"}