{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54466","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-15T15:30:40.319Z","datePublished":"2026-07-17T20:53:24.769Z","dateUpdated":"2026-07-20T19:11:09.339Z"},"containers":{"cna":{"title":"websocket-driver: Message corruption via abuse of protocol length headers","problemTypes":[{"descriptions":[{"cweId":"CWE-130","lang":"en","description":"CWE-130: Improper Handling of Length Parameter Inconsistency","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"HIGH","subAvailabilityImpact":"NONE","baseScore":9.2,"baseSeverity":"CRITICAL","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/faye/websocket-driver-node/security/advisories/GHSA-xv26-6w52-cph6","tags":["x_refsource_CONFIRM"],"url":"https://github.com/faye/websocket-driver-node/security/advisories/GHSA-xv26-6w52-cph6"},{"name":"https://github.com/faye/websocket-driver-node/commit/5b197ca874dab58e96cacad8a3c256797d804680","tags":["x_refsource_MISC"],"url":"https://github.com/faye/websocket-driver-node/commit/5b197ca874dab58e96cacad8a3c256797d804680"}],"affected":[{"vendor":"faye","product":"websocket-driver-node","versions":[{"version":"< 0.7.5","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-07-17T20:53:24.769Z"},"descriptions":[{"lang":"en","value":"websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.7.5, the frame format in draft versions of the WebSocket protocol includes a length header that allows an arbitrarily large integer to be encoded as a sequence of bytes with the high bit set. By sending an indefinite sequence of bytes with values 0x80 or above, a client can make the server parse these bytes into an ever-growing integer in lib/websocket/driver/draft75.js; because JavaScript numbers are 64-bit floating point values, this number will eventually lose precision and lead to the subsequent payload being parsed incorrectly. This issue is fixed in version 0.7.5."}],"source":{"advisory":"GHSA-xv26-6w52-cph6","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-20T19:01:41.093990Z","id":"CVE-2026-54466","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-20T19:11:09.339Z"}}]}}