CVE-2026-26314CWE-20

Go Ethereum affected by DoS via malicious p2p message

High · published February 19, 2026

CVSS v4.0
8.7
EPSS
1%
Percentile
57.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
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
EPSS
0.00851 · 57.8th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2026-02-19T21:15Z
EPSS history
Timeline
  • 19 FEB 21:15Z
    Go Ethereum affected by DoS via malicious p2p message
    cvelistv5