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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. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →

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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