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Vulnerability Intelligence

Vulnerability IntelligenceCVE-2026-26313

CVE-2026-26313

MEDIUM6.9

Go Ethereum affected by DoS via malicious p2p message

Published Feb 19, 2026

Modified 1 weeks ago

Details

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.

References

https://github.com/ethereum/go-ethereum/releases/tag/v1.17.0

https://github.com/ethereum/go-ethereum/security/advisories/GHSA-689v-6xwf-5jf3

https://www.cve.org/CVERecord?id=CVE-2026-26313

CVSS Analysis

CVSS v4.0

6.9

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Attack Requirements

NoneAT:N

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Vulnerable System

Vuln. Confidentiality

NoneVC:N

Vuln. Integrity

NoneVI:N

Vuln. Availability

LowVA:L

Subsequent System

Subseq. Confidentiality

NoneSC:N

Subseq. Integrity

NoneSI:N

Subseq. Availability

NoneSA:N

6.9/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 Type (CWE)

Resource Management

Allocation without Limits

Ecosystems

Timeline

PublishedFeb 19, 2026

ModifiedFeb 20, 2026

CVE-2026-26313 | Mondoo Vulnerability Intelligence