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  5. CVE-2026-26314

CVE-2026-26314: Go Ethereum affected by DoS via malicious p2p message

February 18, 2026 (updated February 27, 2026)

A vulnerable node can be forced to shutdown/crash using a specially crafted message. More details to be released later.

References

  • github.com/advisories/GHSA-2gjw-fg97-vg3r
  • github.com/ethereum/go-ethereum
  • github.com/ethereum/go-ethereum/commit/895a8597cb16c02203e38707ed2d1da5c500fe60
  • github.com/ethereum/go-ethereum/releases/tag/v1.16.9
  • github.com/ethereum/go-ethereum/security/advisories/GHSA-2gjw-fg97-vg3r
  • nvd.nist.gov/vuln/detail/CVE-2026-26314
  • pkg.go.dev/vuln/GO-2026-4507

Code Behaviors & Features

Detect and mitigate CVE-2026-26314 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →

Affected versions

All versions before 1.16.9

Fixed versions

  • 1.16.9

Solution

Upgrade to version 1.16.9 or above.

Impact 7.5 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Learn more about CVSS

Weakness

  • CWE-20: Improper Input Validation

Source file

go/github.com/ethereum/go-ethereum/CVE-2026-26314.yml

Spotted a mistake? Edit the file on GitLab.

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