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.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/faye/websocket-driver-node/commit/5b197ca874dab58e96cacad8a3c256797d804680 Patch
- https://github.com/faye/websocket-driver-node/security/advisories/GHSA-xv26-6w52-cph6 Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 9.2 · fayeNVD modified 2026-10-24 20:10
Affected (CPE criteria) 1
cpe:2.3:a:faye:websocket-driver:*:*:*:*:*:ruby:*:*