Allocation of Resources Without Limits or Throttling Affecting websocket-driver package, versions <0.8.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published8 Jul 2026
- disclosed8 Jul 2026
- creditUnknown
Introduced: 8 Jul 2026
NewCVE-2026-54463 (opens in a new tab)How to fix?
Upgrade websocket-driver to version 0.8.1 or higher.
Overview
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling through the handling of protocol length headers in draft versions of the WebSocket protocol. An attacker can cause excessive memory consumption by sending a continuous sequence of bytes with values 0x80 or above, leading the peer to parse these bytes into an ever-increasing integer value.