ruby-websocket-driver: websocket-driver is a WebSocket protocol handler with pluggable I/O
CVE-2026-54463 is fixed in ruby-websocket-driver on 1 platform by DEBIAN-CVE-2026-54463 (version 0.8.1-1), released July 19, 2026. It is not reported as exploited. Patch Radar priority: High.
websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.8.1, draft versions of the WebSocket protocol in websocket-driver include a length header that allows an arbitrarily large integer to be encoded as bytes with the high bit set, and a server or client can send an indefinite sequence of 0x80 or higher bytes that the peer parses into an ever-growing Ruby integer. This can make a WebSocket connection consume an unbounded amount of memory and lead to the host process running out of memory. This issue is fixed in version 0.8.1.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| ruby-websocket-driver · Debian 14 | 0.8.1-1 | DEBIAN-CVE-2026-54463 | Jul 19, 2026 |
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