CVE catalog
CVE-2026-54466
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 la
- Severity
- Critical · CVSS 9.2
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.38% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | node-websocket-driver | sid | 0.7.5+~cs0.6.14-1 | fixed |
| Debian | node-websocket-driver | forky | 0.7.5+~cs0.6.14-1 | fixed |
| Debian | node-websocket-driver | trixie | 0.7.4+~cs0.6.7-2 | vulnerable |
| Debian | node-websocket-driver | bookworm | 0.7.4+~cs0.6.7-2 | vulnerable |
| Npm | websocket-driver | Not reported | 0.7.5 | fixed |
| Cpe | node-websocket-driver | Not reported | Not reported | vulnerable |
| Cpe | websocket-driver | Not reported | 0.7.5 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | node-websocket-driver | source | sid | 0.7.5+~cs0.6.14-1 | not yet assigned | Not reported | [1142415] |
| Debian | node-websocket-driver | source | forky | 0.7.5+~cs0.6.14-1 | not yet assigned | Not reported | [1142415] |
| Debian | node-websocket-driver | source | trixie | (unfixed) | not yet assigned | Not reported | [1142415] |
| Debian | node-websocket-driver | source | bookworm | (unfixed) | not yet assigned | Not reported | [1142415] |
| Npm | websocket-driver | npm | Not reported | 0.7.5 | Not reported | Not reported | Not reported |
| Cpe | websocket-driver | cpe | Not reported | 0.7.5 | Not reported | NVD-CVE-2026-54466 | Not reported |
Notes
[trixie] node-websocket-driver: Minor issue [bookworm] node-websocket-driver: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [node-websocket-driver]Affected
Details (2)
0.7.4+~cs0.6.7-2· all · bookwormAffected
nvd · node-websocket-driver · debian · bookworm; nvd · node-websocket-driver · debian · 12
0.7.4+~cs0.6.7-2· all · bookwormAffected
nvd · node-websocket-driver · debian · bookworm; nvd · node-websocket-driver · debian · 12
[Debian 13 (Trixie)]
- [node-websocket-driver]Affected
Details (2)
0.7.4+~cs0.6.7-2· all · trixieAffected
nvd · node-websocket-driver · debian · 13
0.7.4+~cs0.6.7-2· all · trixieAffected
nvd · node-websocket-driver · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_21448-1.json]
- [https://github.com/advisories/GHSA-xv26-6w52-cph6]
- [https://github.com/faye/websocket-driver-node/commit/5b197ca874dab58e96cacad8a3c256797d804680]
- [https://github.com/faye/websocket-driver-node/security/advisories/GHSA-xv26-6w52-cph6]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-54466]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-54466]
- [https://security-tracker.debian.org/tracker/CVE-2026-54466]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3204.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]