CVE-2020-26265
Medium
Description
Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. In Geth from version 1.9.4 and before version 1.9.20 a consensus-vulnerability could cause a chain split, where vulnerable versions refuse to accept the canonical chain. The fix was included in the Paragade release version 1.9.20. No individual workaround patches have been made -- all users are recommended to upgrade to a newer version.
SeverityMedium
CVSS5.3
Exploit probability—
ProductGo Ethereum
PublishedDec 11, 2020
First seenDec 11, 2020
Weakness typeCWE-682CWE-682
How to fix
Update
- ethereum go_ethereum1.9.20 or later
- github.com/ethereum/go-ethereum1.9.20 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ethereum go_ethereum | 1.9.4 ≤ v < 1.9.20 | 1.9.20 |
| github.com/ethereum/go-ethereumGo | 1.9.4 ≤ v < 1.9.20 | 1.9.20 |
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