CVE-2026-26314 — Improper Input Validation in Go-ethereum

CWE-20 — Improper Input Validation10 documents5 sources
Severity
8.7HIGHNVD
EPSS
0.1%
top 79.26%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Ethereum Go-ethereumGithub.com Ethereum Go-ethereumEthereum GO Ethereum
Timeline
PublishedFeb 19
Latest updateFeb 24

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.

CVSS 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

Affected Packages3 packages

▶CVEListV5ethereum/go-ethereum< 1.16.9
▶NVDethereum/go_ethereum< 1.16.9

Patches

Patch: github.com ↗

🔴Vulnerability Details

4
OSV
Go Ethereum affected by crash via malicious p2p message in github.com/ethereum/go-ethereum↗2026-02-24
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CVEList
Go Ethereum affected by DoS via malicious p2p message↗2026-02-19
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OSV
Go Ethereum affected by DoS via malicious p2p message↗2026-02-18
▶
GHSA
Go Ethereum affected by DoS via malicious p2p message↗2026-02-18
▶

🕵️Threat Intelligence

5
Wiz
CVE-2026-26313 Impact, Exploitability, and Mitigation Steps | Wiz↗
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Wiz
CVE-2026-26314 Impact, Exploitability, and Mitigation Steps | Wiz↗
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Wiz
CVE-2026-22862 Impact, Exploitability, and Mitigation Steps | Wiz↗
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Wiz
CVE-2026-22868 Impact, Exploitability, and Mitigation Steps | Wiz↗
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Wiz
CVE-2026-26315 Impact, Exploitability, and Mitigation Steps | Wiz↗
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CVE-2026-26314 — Improper Input Validation | cvebase