CVE-2026-26315

HIGH

7.5

Description

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/19/2026

Last Modified2/23/2026

Sourcenvd

Honeypot Sightings0

Affected Products

ethereum:go_ethereum

Weaknesses (CWE)

CWE-203

References

https://github.com/ethereum/go-ethereum/security/advisories/GHSA-m6j8-rg6r-7mv8(security-advisories@github.com)

IOC Correlations

No correlations recorded

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