Input validation error in go-ethereum - CVE-2026-26314
Published: April 27, 2026
Vulnerability identifier: #VU127998
CSH Severity: Medium
CVSS v4.0: 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:U/U:Green
CVE-ID: CVE-2026-26314
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Ethereum
Affected software:
go-ethereum
go-ethereum
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper input validation in the p2p message handling component when processing p2p messages. A remote attacker can send a specially crafted message to cause a denial of service.
How to mitigate CVE-2026-26314
Install security update from vendor's website.