Critical
node-websocket-driver — security advisory
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.
- Products
- node-websocket-driver
- Affected versions
- 0.3.5-1, 0.7.4+~cs0.6.14-1, 0.7.4+~cs0.6.7-2, 0.7.5+~cs0.6.14-1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-54466
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:45 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2026-54466
node-websocket-driver
Fixed versions: Not specified
node-websocket-driver
Fixed versions: Not specified
node-websocket-driver
Fixed versions: Not specified
node-websocket-driver
Fixed versions: Not specified
node-websocket-driver
Fixed versions: Not specified
node-websocket-driver
Fixed versions: Not specified
node-websocket-driver
Fixed versions: Not specified
Complete source record
{
"id": "3638ccd43e8b243258c03fc024b8a8159cc44b5c39768a3900d796628600c74a",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-54466",
"method": "structured",
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"summary": "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.",
"evidence": "osv:UBUNTU-CVE-2026-54466",
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{
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},
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"database_specific": {
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"modified": "2026-10-17T12:59:06.028870434Z",
"provider": "osv",
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"references": [
"https://ubuntu.com/security/CVE-2026-54466",
"https://www.cve.org/CVERecord?id=CVE-2026-54466",
"https://github.com/faye/websocket-driver-node/security/advisories/GHSA-xv26-6w52-cph6"
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"source_id": "core-osv",
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"published_at": "2026-07-17T21:17:00+00:00"
}