Description
ws is an open source WebSocket client and server for Node.js. Prior to 8.20.1, the websocket.close() implementation is vulnerable to uninitialized memory disclosure when a TypedArray is passed as the reason argument. This vulnerability is fixed in 8.20.1.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| websockets | ws | >= 8.0.0, < 8.20.1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | node-ws | 8.20.1+~cs14.19.1-1 | — |
| Debian 13 | node-ws | No fix yet | — |
| Debian 12 | node-ws | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | node-ws | No fix yet | — |
| Ubuntu 26.04 LTS | node-ws | No fix yet | — |
| Ubuntu 25.10 | node-ws | No fix yet | — |
| Ubuntu 24.04 LTS | node-ws | No fix yet | — |
| Ubuntu 22.04 LTS | node-ws | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | node-ws | No fix yet | — |
| Ubuntu 18.04 LTS | node-ws | No fix yet | — |
| Ubuntu 16.04 LTS | node-ws | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | rh-podman-desktop | 1.1.2-1.el10_2 | RHSA-2026:57590 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Hardened Images 1 | dotnet10.0 +5 | 10.0.109-1.hum1 | RHSA-2026:26638 |
| Red Hat Hardened Images 1 | dotnet8.0 +4 | 8.0.128-1.hum1 | RHSA-2026:26994 |
| Red Hat Hardened Images 1 | dotnet9.0 +6 | 9.0.118-1.hum1 | RHSA-2026:27171 |
| Red Hat Hardened Images 1 | yarnpkg | 1.22.22-18.1.hum1 | RHSA-2026:7655 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | kimi-code | 0.41.0-1.1 | openSUSE-SU-2026:11705-1 |
| openSUSE Tumbleweed | zcode | 3.14.3-1.1 | openSUSE-SU-2026:11952-1 |
| openSUSE Leap 16.0 | kimi-code | 0.42.0-bp160.1.1 | openSUSE-SU-2026:21849-1 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | code-server | 4.121.0-r0 | — |
| Wolfi rolling | jupyter-base-notebook | 7.6.3-r2 | — |
| Wolfi rolling | katib-earlystopping +8 | 0.19.0-r31 | — |
| Wolfi rolling | katib-suggestion-goptuna-compat | 0.19.0-r40 | — |
| Wolfi rolling | kubeflow-pipelines-frontend | 2.16.1-r3 | — |
| Wolfi rolling | langfuse-3-worker | 3.175.0-r0 | — |
| Wolfi rolling | opensearch-dashboards-3-dashboards-observability | 3.6.0-r5 | — |
| Wolfi rolling | py3.10-jupyterlab +3 | 4.6.1-r1 | — |
| Wolfi rolling | vitess-23 | 23.0.4-r5 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | ws | >= 8.0.0, < 8.20.1 | 8.20.1 | GHSA-58qx-3vcg-4xpx |
Advisories 12
- WID-SEC-2026-3046 IBM Concert: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 10, 2026
- RHSA-2026:7655 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:57590 Red Hat Security Advisory: rh-podman-desktop security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:27171 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:26638 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- RHSA-2026:26994 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026
- openSUSE-SU-2026:11952-1 zcode-3.14.3-1.1 on GA media SUSE / openSUSE Security Updates · Oct 2, 2026
- WID-SEC-2026-2460 Atlassian Bamboo, Bitbucket, Confluence, Fisheye, Crucible, Jira und Jira Service Management: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 1, 2026
- WID-SEC-2026-1955 Atlassian Bamboo, Bitbucket, Confluence, Fisheye, Crucible, Jira und Jira Service Management: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 23, 2026
- openSUSE-SU-2026:21849-1 Security update for kimi-code SUSE / openSUSE Security Updates · Sep 15, 2026
- openSUSE-SU-2026:11705-1 kimi-code-0.41.0-1.1 on GA media SUSE / openSUSE Security Updates · Sep 8, 2026
- WID-SEC-2026-2118 IBM App Connect Enterprise: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 4, 2026