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CVE-2020-26265

nvd nist
Published: Dec 11, 2020Modified: Jun 17, 2026

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5.3
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Exploitability: 1.6 / Impact: 3.6
Source: NVD

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.

Affected (1)

Ethereum
1 product
Go Ethereum
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Go Ethereum
From 1.9.4 to 1.9.20

Related CWEs

CWE-682
Incorrect Calculation
The product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management.

References (4)

Source: security-advisories@github.com
Third Party Advisory
Source: security-advisories@github.com
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.