CVE-2026-22868: GO-2026-4314 - High CPU usage leading to DoS via malicious p2p message in github.com/ethereum/go-ethereum

CVE-2026-22868 · Severity: medium · CVSS 4 · Published 2026-01-23

High CPU usage leading to DoS via malicious p2p message in github.com/ethereum/go-ethereum

Technologies: github.com/ethereum/go-ethereum (Go). Vendors: Go.

Quick answers

Is CVE-2026-22868 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-22868 being exploited in the wild.
How severe is CVE-2026-22868?
Medium severity, with a CVSS score of 4, published 23 January 2026.
Which products and versions are affected?
github.com/ethereum/go-ethereum (Go) SEMVER:introduced=0,fixed=1.16.8.
Is there a fix for CVE-2026-22868?
Yes. github.com/ethereum/go-ethereum (Go): upgrade to 1.16.8 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2026-22868?
Check whether you run github.com/ethereum/go-ethereum (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • github.com/ethereum/go-ethereum (Go): upgrade to 1.16.8 or later
    go get github.com/ethereum/go-ethereum@v1.16.8

Affected products

  • github.com/ethereum/go-ethereum (Go) SEMVER:introduced=0,fixed=1.16.8

Identifiers

  • CVE-2026-22868
  • GHSA-mq3p-rrmp-79jg
  • GO-2026-4314

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