GHSA-m6j8-rg6r-7mv8Medium

Go Ethereum Improperly Validates the ECIES Public Key in RLPx Handshake

Published
February 18, 2026
Last Modified
February 27, 2026

🔗 CVE IDs covered (1)

CVE-2026-26315 →

📋 Description

Impact

Through a flaw in the ECIES cryptography implementation, an attacker may be able to extract bits of the p2p node key.

Patches

The issue is resolved in the v1.16.9 and v1.17.0 releases of Geth. We recommend rotating the node key after applying the upgrade, which can be done by removing the file <datadir>/geth/nodekey before starting Geth.

Credit

The issue was reported as a public pull request to go-ethereum by @fengjian.

🎯 Affected products1

  • go/github.com/ethereum/go-ethereum:<= 1.16.8

🔗 References (7)