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CVE-2026-22862— go-ethereum has a DoS via malicious p2p message

Quick assessment

Affected
ethereum go-ethereum
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

go-ethereum是ethereum开源的一个以太坊协议库。 go-ethereum 1.16.8之前版本存在输入验证错误漏洞，该漏洞源于特制消息可能导致节点关闭或崩溃。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.71% · P52

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2026-22862

Vulnerability Information
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Vulnerability Title
go-ethereum has a DoS via malicious p2p message
Source: CVE Program / CVE List V5
Vulnerability Description
go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol. A vulnerable node can be forced to shutdown/crash using a specially crafted message. This vulnerability is fixed in 1.16.8.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
go-ethereum 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
go-ethereum是ethereum开源的一个以太坊协议库。 go-ethereum 1.16.8之前版本存在输入验证错误漏洞，该漏洞源于特制消息可能导致节点关闭或崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ethereum go-ethereum < 1.16.8 -

II. Public POCs for CVE-2026-22862

# POC Description Source Link Shenlong Link
1 None https://github.com/qzhodl/CVE-2026-22862 POC Details
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No public POC found.

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III. Intelligence Information for CVE-2026-22862

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IV. Related Vulnerabilities

Same product: go-ethereum
Same vendor: ethereum
Same weakness: CWE-20

V. Comments for CVE-2026-22862

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