Is this vulnerability remotely exploitable?

Yes. A remote peer that can connect to the node over the Ethereum P2P network can send crafted messages to trigger the crash.

What level of access does an attacker need?

The attacker typically needs network-level access sufficient to establish or maintain a P2P connection to the target geth node; no local account or OS-level access is required.

What is the safest general fix pattern?

Strengthen input validation in all message parsing paths, handle malformed messages gracefully with explicit errors, and ensure that no single parsing failure can terminate the process.

Severity:

HIGH RISK

(7.5)

Improper Input Validation (CWE-20) in go-ethereum (geth) Network Message Handling

CVE-2026-22868

Published:

Jan 13, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-306

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

Account Takeover / Loss of Account Control

February 17, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Remote Code Execution on the Server Host

February 17, 2026

Vulnerability Type

Category:

Improper Input Validation

CWE:

CWE-20

Impact:

Denial of Service

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

Vulnerability Type

Category:

Improper Input Validation

CWE:

CWE-20

Impact:

Denial of Service

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

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355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Improper Input Validation (CWE-20) in go-ethereum (geth) Network Message Handling

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Vulnerability Type

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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