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GHSA-m6j8-rg6r-7mv8

Go Ethereum Improperly Validates the ECIES Public Key in RLPx Handshake

Source: GitHub Advisory Database (reviewed) Moderate CVE-2026-26315

Packages

EcosystemPackageAffectedFixed in
Go github.com/ethereum/go-ethereum < 1.16.9 1.16.9

Details

As written in the advisory (Markdown source, shown as plain text).

### 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.

References

External links from the advisory. They lead to third-party sites.