PT-2026-20348 · Unknown · Go-Ethereum

Waleed Ahmed · Published 2026-02-17 · Updated 2026-04-16 · CVE-2026-26314

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions go-ethereum (geth) versions prior to 1.16.9 go-ethereum (geth) versions prior to 1.17.0

Description A specially crafted message can cause go-ethereum (geth) nodes to crash or shut down remotely. This issue does not require authentication. The vulnerable component is the peer-to-peer message handling within the Ethereum protocol implementation.

Recommendations Upgrade to version 1.16.9 or later. Upgrade to version 1.17.0 or later.

Exploit

Fix

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2026-26314

GHSA-2GJW-FG97-VG3R

GO-2026-4507

SUSE-SU-2026:0757-1

Affected Products

Go-Ethereum

References · 123

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26314.json · Exploit
• https://github.com/ethereum/go-ethereum/security/advisories/GHSA-2gjw-fg97-vg3r · Vendor Advisory
• https://github.com/ethereum/go-ethereum/commit/895a8597cb16c02203e38707ed2d1da5c500fe60 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2026:0757-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-26314 · Security Note
• https://osv.dev/vulnerability/GHSA-2gjw-fg97-vg3r · Vendor Advisory
• https://osv.dev/vulnerability/GO-2026-4507 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-26314 · Vendor Advisory
• https://github.com/ethereum/go-ethereum · Note
• https://github.com/ethereum/go-ethereum/releases/tag/v1.16.9 · Note
• https://suse.com/security/cve/CVE-2026-25242 · Note
• https://suse.com/security/cve/CVE-2026-24894 · Note
• https://suse.com/security/cve/CVE-2017-18906 · Note
• https://suse.com/security/cve/CVE-2026-22592 · Note
• https://suse.com/security/cve/CVE-2026-27017 · Note