{"id":"CVE-2026-54466","summary":"websocket-driver: Message corruption via abuse of protocol length headers","details":"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.","aliases":["GHSA-xv26-6w52-cph6"],"modified":"2026-07-22T05:29:48.355390662Z","published":"2026-07-17T20:53:24.769Z","related":["CGA-fj4m-5j57-m642"],"database_specific":{"cwe_ids":["CWE-130"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54466.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54466.json"},{"type":"ADVISORY","url":"https://github.com/faye/websocket-driver-node/security/advisories/GHSA-xv26-6w52-cph6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54466"},{"type":"FIX","url":"https://github.com/faye/websocket-driver-node/commit/5b197ca874dab58e96cacad8a3c256797d804680"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/faye/websocket-driver-node","events":[{"introduced":"0"},{"fixed":"5b197ca874dab58e96cacad8a3c256797d804680"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"0.7.5"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["0.7.4","0.7.3","0.7.2","0.7.1","0.7.0","0.6.5","0.6.4","0.6.3","0.6.2","0.6.1","0.6.0","0.5.4","0.5.3","0.5.2","0.5.1","0.5.0","0.4.0","0.3.6","0.3.5","0.3.4","0.3.3","0.3.2","0.3.1","0.3.0","0.2.2","0.2.1","0.2.0","0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54466.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"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"}]}