CVE-2020-26265 MEDIUM

CVE-2020-26265: Consensus flaw during block processing

Vendor Ethereum
Product go-ethereum
Weakness CWE-682
Published December 11, 2020
Last update August 4, 2024
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Confidentiality None
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

December 11, 2020 CVE published
August 4, 2024 Record updated