Vulnerability details

7.5/10
CVSS 3.1
CVE-2026-48779
not_affected Published 2026-06-17 Updated 2026-10-26
Vulnerability Data from Dependency-Track
Description
ws is an open source WebSocket client and server for Node.js. All versions from 1.1.0 up to (but not including) 5.2.5, from 6.0.0 up to 6.2.4, from 7.0.0 up to 7.5.11, and from 8.0.0 up to 8.21.0 are affected by a memory exhaustion DoS vulnerability. A peer can send a high volume of exceptionally small fragments and data chunks, with modest network traffic, to force the remote peer into allocating and holding structural wrappers that consume far more memory than the default documented message-size limit, leading to process termination due to OOM. This issue has been fixed in versions 5.2.5, 6.2.4, 7.5.11, and 8.21.0.
Same vulnerability as
GHSA-96hv-2xvq-fx4p not_affected according to EUVD-2026-37504
Analysis Read only

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