| Name | CVE-2026-48779 |
| 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. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| node-ws (PTS) | bullseye | 7.4.2+~cs18.0.8-2 | vulnerable |
| bookworm | 8.11.0+~cs13.7.3-1 | vulnerable | |
| trixie | 8.18.1+~cs14.18.2-1 | vulnerable | |
| forky, sid | 8.20.1+~cs14.19.1-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| node-ws | source | (unstable) | (unfixed) |
https://github.com/websockets/ws/security/advisories/GHSA-96hv-2xvq-fx4p