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TI-2026-39323 Aliases CVE-2026-54466GHSA-xv26-6w52-cph6

websocket-driver: Message corruption via abuse of protocol length headers

Priority MEDIUM 46CWE-130Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0038 32nd percentileScored 2026-11-07
Fix Fixed websocket-driver-node (faye): 0.7.5websocket-driver (npm): 0.7.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
fayewebsocket-driver-nodebefore 0.7.50.7.5Patch availableCNA
—websocket-driver (npm)before 0.7.50.7.5Patch availableGHSA-xv26-6w52-cph6
  • websocket-driver-node Vendorfaye Affected before 0.7.5 Fixed in 0.7.5 Patch available CNA
  • websocket-driver (npm) Vendor— Affected before 0.7.5 Fixed in 0.7.5 Patch available GHSA-xv26-6w52-cph6

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:faye:websocket-driver:*:*:*:*:*:ruby:*:*before 0.7.5Vulnerablefaye
  • cpe:2.3:a:faye:websocket-driver:*:*:*:*:*:ruby:*:* Versions before 0.7.5 Vulnerable ·faye

Remediation

  • Fix · CNA websocket-driver-node (faye) Fixed in 0.7.5
  • Fix · GHSA-xv26-6w52-cph6 websocket-driver (npm) Fixed in 0.7.5 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-54466
  2. 2026-10-03 Alias added: GHSA-xv26-6w52-cph6

References

Patch 1

Advisory 1

Other 2

  • TI-2026-39320 websocket-driver: Memory exhaustion via abuse of protocol length headers CVSS 4.0MEDIUM 6.9
  • TI-2026-39322 websocket-driver: Memory exhaustion in HTTP header parser CVSS 4.0MEDIUM 6.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences