CVE-2026-26314— Go Ethereum affected by DoS via malicious p2p message
Quick assessment
Affected
ethereum go-ethereum
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
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 1.16.9之前版本存在输入验证错误漏洞，该漏洞源于攻击者可通过特制消息迫使易受攻击的节点关闭或崩溃。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2026-26314
Vulnerability Information
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Vulnerability Title
Go Ethereum affected by 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. Prior to version 1.16.9, a vulnerable node can be forced to shutdown/crash using a specially crafted message. The problem is resolved in the v1.16.9 and v1.17.0 releases of Geth.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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 1.16.9之前版本存在输入验证错误漏洞，该漏洞源于攻击者可通过特制消息迫使易受攻击的节点关闭或崩溃。
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 | < 1.16.9 | - |
|
II. Public POCs for CVE-2026-26314
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · ethereum · 2026-02-19 · 3 CVEs total
| CVE-2026-26315 | Go Ethereum Improperly Validates the ECIES Public Key in RLPx Handshake | |
| CVE-2026-26313 | Go Ethereum affected by DoS via malicious p2p message |
IV. Related Vulnerabilities
Same product: go-ethereum
-
CVE-2026-26315
Go Ethereum Improperly Validates the ECIES Public Key in RLP -
CVE-2026-26313
Go Ethereum affected by DoS via malicious p2p message -
CVE-2026-22868
go-ethereum has a DoS via malicious p2p message -
CVE-2026-22862
go-ethereum has a DoS via malicious p2p message -
CVE-2025-24883
go-ethereum has a DoS via malicious p2p message
Same vendor: ethereum
-
CVE-2026-40072
web3.py affected by SSRF via CCIP Read (EIP-3668) OffchainLo -
CVE-2026-26315
Go Ethereum Improperly Validates the ECIES Public Key in RLP -
CVE-2026-26313
Go Ethereum affected by DoS via malicious p2p message -
CVE-2026-22868
go-ethereum has a DoS via malicious p2p message -
CVE-2026-22862
go-ethereum has a DoS via malicious p2p message
Same weakness: CWE-20
-
CVE-2026-34959
Adminer before 5.5.0 Open Redirect via X-Forwarded-Prefix -
CVE-2026-16434
Adminer before 5.5.1 X-Forwarded-Prefix Backslash Bypass -
CVE-2026-55371
OpenEXR: OpenEXRCore exr_attr_set_bytes() accepts NULL type_ -
CVE-2026-72711
Lean 4 before 4.32.2 Kernel Accepts Opaque Declaration With -
CVE-2026-76816
Netty: MQTT Topic Name and Client ID Validation Bypass
V. Comments for CVE-2026-26314
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