{"id":"GHSA-m6j8-rg6r-7mv8","summary":"Go Ethereum Improperly Validates the ECIES Public Key in RLPx Handshake","details":"### Impact\n\nThrough a flaw in the ECIES cryptography implementation, an attacker may be able to extract bits of the p2p node key.\n\n### Patches\n\nThe 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 `\u003cdatadir\u003e/geth/nodekey` before starting Geth.\n\n### Credit\n\nThe issue was reported as a public pull request to go-ethereum by @fengjian.","aliases":["CVE-2026-26315","GO-2026-4511"],"modified":"2026-03-19T08:48:11.477721Z","published":"2026-02-18T22:36:06Z","database_specific":{"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2026-02-18T22:36:06Z","nvd_published_at":"2026-02-19T22:16:46Z","cwe_ids":["CWE-203"]},"references":[{"type":"WEB","url":"https://github.com/ethereum/go-ethereum/security/advisories/GHSA-m6j8-rg6r-7mv8"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-26315"},{"type":"WEB","url":"https://github.com/ethereum/go-ethereum/pull/33669"},{"type":"WEB","url":"https://github.com/ethereum/go-ethereum/commit/46bee92f9e64c0a06a12586a5d21cffc49d1ba8e"},{"type":"PACKAGE","url":"https://github.com/ethereum/go-ethereum"},{"type":"WEB","url":"https://github.com/ethereum/go-ethereum/releases/tag/v1.16.9"},{"type":"WEB","url":"https://pkg.go.dev/vuln/GO-2026-4511"}],"affected":[{"package":{"name":"github.com/ethereum/go-ethereum","ecosystem":"Go","purl":"pkg:golang/github.com/ethereum/go-ethereum"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.16.9"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-m6j8-rg6r-7mv8/GHSA-m6j8-rg6r-7mv8.json","last_known_affected_version_range":"\u003c= 1.16.8"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"}]}