CVE-2026-26313

EPSS 0.03%

Go Ethereum affected by DoS via malicious p2p message

Published: 2/18/2026Modified: 2/28/2026

Also known as:GHSA-689v-6xwf-5jf3GO-2026-4508

Description

### Impact An attacker can cause high memory usage by sending a specially-crafted p2p message. More details to be released later. ### Patches The issue is resolved in the v1.17.0 release. ### Credit This issue was reported to the Ethereum Foundation Bug Bounty Program by @revofusion

Affected packages (2)

Go/github.com/ethereum/go-ethereumfrom 0, < 1.17.0
Go/github.com/ethereum/go-ethereumfrom 0, < 1.17.0

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 4.0	—	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

References (5)

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-26313
PATCHhttps://github.com/ethereum/go-ethereum
WEBhttps://github.com/ethereum/go-ethereum/releases/tag/v1.17.0
WEBhttps://github.com/ethereum/go-ethereum/security/advisories/GHSA-689v-6xwf-5jf3
WEBhttps://pkg.go.dev/vuln/GO-2026-4508