CVE-2026-26314

Published Feb 19, 2026

Last updated 3 months ago

CVSS high 8.7
go-ethereum
Geth

Overview

AI description

Automated description summarized from trusted sources.

CVE-2026-26314 describes a vulnerability found in go-ethereum (geth), which is a Golang-based implementation of the Ethereum protocol. Prior to versions 1.16.9 and 1.17.0, a flaw existed that could allow a vulnerable node to be forced into a shutdown or crash state. This could be triggered by sending a specially crafted message to the node. The issue, categorized as improper input validation, has since been addressed and resolved in the Geth releases v1.16.9 and v1.17.0.

Description
go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol. Prior to version 1.16.9, a vulnerable node can be forced to shutdown/crash using a specially crafted message. The problem is resolved in the v1.16.9 and v1.17.0 releases of Geth.
Source
security-advisories@github.com
NVD status
Analyzed
Products
go_ethereum

Risk scores

CVSS 4.0

Type
Secondary
Base score
8.7
Impact score
-
Exploitability score
-
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Severity
HIGH

CVSS 3.1

Type
Primary
Base score
7.5
Impact score
3.6
Exploitability score
3.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity
HIGH

Weaknesses

security-advisories@github.com
CWE-20

Social media

Hype score is a measure of social media activity compared against trending CVEs from the past 12 months. Max score 100.

Hype score

5

Configurations