CVE-2026-26315

go-ethereum (Geth) is a golang execution layer implementation of the Ethereum protocol. Prior to version 1.16.9, through a flaw in the ECIES cryptography implementation, an attacker may be able to extract bits of the p2p node key. The issue is resolved in the v1.16.9 and v1.17.0 releases of Geth. Geth maintainers recommend rotating the node key after applying the upgrade, which can be done by removing the file `<datadir>/geth/nodekey` before starting Geth.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/ethereum/go-ethereum/security/advisories/GHSA-m6j8-rg6r-7mv8	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:ethereum:go_ethereum:*:*:*:*:*:*:*:*

History

23 Feb 2026, 18:21

Type	Values Removed	Values Added
Summary		(es) go-ethereum (Geth) es una implementación de capa de ejecución en golang del protocolo Ethereum. Antes de la versión 1.16.9, a través de una falla en la implementación de criptografía ECIES, un atacante podría ser capaz de extraer bits de la clave de nodo p2p. El problema está resuelto en las versiones v1.16.9 y v1.17.0 de Geth. Los mantenedores de Geth recomiendan rotar la clave de nodo después de aplicar la actualización, lo cual se puede hacer eliminando el archivo `/geth/nodekey` antes de iniciar Geth.
First Time		Ethereum Ethereum go Ethereum
CPE		cpe:2.3:a:ethereum:go_ethereum::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5
References	~~() https://github.com/ethereum/go-ethereum/security/advisories/GHSA-m6j8-rg6r-7mv8 -~~	() https://github.com/ethereum/go-ethereum/security/advisories/GHSA-m6j8-rg6r-7mv8 - Vendor Advisory

19 Feb 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-19 22:16

Updated : 2026-02-23 18:21

NVD link : CVE-2026-26315

Mitre link : CVE-2026-26315

CVE.ORG link : CVE-2026-26315

JSON object : View

Products Affected

ethereum

go_ethereum

CWE

CWE-203

Observable Discrepancy

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