Medium severity5.3NVD Advisory· Published Nov 25, 2020· Updated Jun 17, 2026
CVE-2020-26240
CVE-2020-26240
Description
Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. An ethash mining DAG generation flaw in Geth before version 1.9.24 could cause miners to erroneously calculate PoW in an upcoming epoch (estimated early January, 2021). This happened on the ETC chain on 2020-11-06. This issue is relevant only for miners, non-mining nodes are unaffected. This issue is fixed as of 1.9.24
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/ethereum/go-ethereumGo | < 1.9.24 | 1.9.24 |
Affected products
4cpe:2.3:a:ethereum:go_ethereum:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:ethereum:go_ethereum:*:*:*:*:*:*:*:*range: <1.9.24
- (no CPE)range: < 1.9.24
- ghsa-coords2 versionspkg:golang/github.com/ethereum/go-ethereumpkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Tumbleweed
< 1.9.24+ 1 more
- (no CPE)range: < 1.9.24
- (no CPE)range: < 0.0.20250807T150727-1.1
Patches
Vulnerability mechanics
References
7- github.com/ethereum/go-ethereum/commit/d990df909d7839640143344e79356754384dcdd0nvdPatchThird Party AdvisoryWEB
- github.com/ethereum/go-ethereum/pull/21793nvdPatchThird Party AdvisoryWEB
- blog.ethereum.org/2020/11/12/geth_security_release/nvdVendor Advisory
- github.com/advisories/GHSA-v592-xf75-856pghsaADVISORY
- github.com/ethereum/go-ethereum/security/advisories/GHSA-v592-xf75-856pnvdThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2020-26240ghsaADVISORY
- blog.ethereum.org/2020/11/12/geth_security_releaseghsaWEB
News mentions
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