CVE-2026-26314

HIGH
2026-02-19 [email protected] GHSA-2gjw-fg97-vg3r
7.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 22:03 vuln.today
Patch Released
Feb 23, 2026 - 18:32 nvd
Patch available
CVE Published
Feb 19, 2026 - 22:16 nvd
HIGH 7.5

Tags

Golang Denial Of Service Go Ethereum Suse

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.

Analysis

Geth versions prior to 1.16.9 can be remotely crashed by sending a specially crafted message over the network, allowing unauthenticated attackers to cause denial of service against Ethereum nodes. This vulnerability in Go Ethereum's message handling requires no user interaction and affects the availability of affected nodes. …

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Remediation

Within 24 hours: Inventory all go-ethereum instances and identify those running versions before 1.16.9. Within 7 days: Apply vendor patch to upgrade all affected nodes to version 1.16.9 or later, prioritizing production and validator nodes. …

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Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +38
POC: 0

Vendor Status

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CVE-2026-26314 vulnerability details – vuln.today
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