PT-2026-63317 · Unknown · Websocket-Driver

CVE-2026-61666

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Published

2026-07-21

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Updated

2026-08-17

CVSS v4.0

8.9

High

VectorAV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
Name of the Vulnerable Software and Affected Versions websocket-driver versions prior to 0.8.2
Description Remote clients can crash a TCP-backed WebSocket server by sending a malformed Host header. The WebSocket::Driver.server() method passes this header to URI.parse in the lib/websocket/http/request.rb file without catching the URI::InvalidURIError exception. If the application using the library does not handle this error from the parse() function, the server process will crash.
Recommendations Update websocket-driver to version 0.8.2.

Exploit

Fix

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Weakness Enumeration

Related Identifiers

CVE-2026-61666
GHSA-2X63-GW47-W4MM
OESA-2026-3218

Affected Products

Websocket-Driver