Allocation of Resources Without Limits or Throttling Affecting org.java-websocket:java-websocket package, versions [0,]
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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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Start learning- Snyk IDSNYK-JAVA-ORGJAVAWEBSOCKET-19778372
- published14 Sept 2026
- disclosed13 Sept 2026
- creditemiya
Introduced: 13 Sep 2026
NewCVE-2026-90584 (opens in a new tab)How to fix?
There is no fixed version for org.java-websocket:Java-WebSocket.
Overview
org.java-websocket:Java-WebSocket is a barebones WebSocket server and client implementation written in 100% Java.
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the processFrameContinuousAndNonFin function in Draft_6455.java of the fragmentation handler. An attacker can exhaust server resources by sending crafted fragmented WebSocket frames that manipulate the continuous/non-final frame processing path. This can force the application to allocate excessive memory or related resources, degrading or crashing the WebSocket service for connected users.