Medium 6.9Published Feb 19, 2026

CVE-2026-26313Go Ethereum affected by DoS via malicious p2p message

Updated under an hour ago (Oct 26, 2026, 1:40 PM ET)

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It affects ethereum go-ethereum. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for ethereum go-ethereum

Exploited in the last 30 days

go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol. Prior to version 1.17.0, an attacker can cause high memory usage by sending a specially-crafted p2p message. The issue is resolved in the v1.17.0 release.

CVSS: 6.9 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Weakness (CWE): CWE-770
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Feb 20, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

ethereum go-ethereum ethereum:go_ethereum (from the name)	before 1.17.0	CNA record
ethereum go_ethereum ethereum:go_ethereum	before 1.17.0	NVD

References

References

https://github.com/ethereum/go-ethereum/security/advisories/GHSA-689v-6xwf-5jf3	x-refsource-confirm, vendor-advisory
https://github.com/ethereum/go-ethereum/releases/tag/v1.17.0	x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.