{"id":"CVE-2026-26314","state":"PUBLISHED","title":"Go Ethereum affected by DoS via malicious p2p message","description":"go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol. Prior to version 1.16.9, a vulnerable node can be forced to shutdown/crash using a specially crafted message. The problem is resolved in the v1.16.9 and v1.17.0 releases of Geth.","publishedAt":"2026-02-19T21:15:11.752Z","updatedAt":"2026-02-20T15:42:28.197Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["ethereum go-ethereum"],"affected":[{"vendor":"ethereum","product":"go-ethereum","versions":[{"version":"< 1.16.9","status":"affected"}]}],"references":["https://github.com/ethereum/go-ethereum/security/advisories/GHSA-2gjw-fg97-vg3r","https://github.com/ethereum/go-ethereum/commit/895a8597cb16c02203e38707ed2d1da5c500fe60","https://github.com/ethereum/go-ethereum/releases/tag/v1.16.9"],"weaknesses":["CWE-20"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/26xxx/CVE-2026-26314.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-26314","state":"PUBLISHED","datePublished":"2026-02-19T21:15:11.752Z","dateUpdated":"2026-02-20T15:42:28.197Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-02-13T16:27:51.807Z"},"containers":{"cna":{"title":"Go Ethereum affected by DoS via malicious p2p message","descriptions":[{"lang":"en","value":"go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol. Prior to version 1.16.9, a vulnerable node can be forced to shutdown/crash using a specially crafted message. The problem is resolved in the v1.16.9 and v1.17.0 releases of Geth."}],"affected":[{"vendor":"ethereum","product":"go-ethereum","versions":[{"version":"< 1.16.9","status":"affected"}]}],"references":[{"url":"https://github.com/ethereum/go-ethereum/security/advisories/GHSA-2gjw-fg97-vg3r","name":"https://github.com/ethereum/go-ethereum/security/advisories/GHSA-2gjw-fg97-vg3r","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/ethereum/go-ethereum/commit/895a8597cb16c02203e38707ed2d1da5c500fe60","name":"https://github.com/ethereum/go-ethereum/commit/895a8597cb16c02203e38707ed2d1da5c500fe60","tags":["x_refsource_MISC"]},{"url":"https://github.com/ethereum/go-ethereum/releases/tag/v1.16.9","name":"https://github.com/ethereum/go-ethereum/releases/tag/v1.16.9","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","lang":"en","description":"CWE-20: Improper Input Validation","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-02-19T21:15:11.752Z"},"source":{"advisory":"GHSA-2gjw-fg97-vg3r","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-02-20T15:32:18.591679Z","id":"CVE-2026-26314","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-20T15:42:28.197Z"}}]}}}