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.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| websockets | ws | >= 8.0.0, < 8.20.1 |
| Red Hat | Cryostat 4 on RHEL 9 | — |
| Red Hat | Red Hat AMQ Broker 7.13.6 | — |
| Red Hat | Red Hat AMQ Broker 7.14.1 | — |
| Red Hat | Red Hat Enterprise Linux 10 | — |
| Red Hat | Red Hat Ansible Automation Platform 2.6 | — |
| Red Hat | Red Hat Developer Hub 1.10 | — |
| Red Hat | Red Hat Developer Hub 1.9 | — |
| Red Hat | Red Hat Discovery 2 | — |
| Red Hat | Red Hat Hardened Images | — |
| Red Hat | Red Hat Hardened Images | — |
| Red Hat | Red Hat Hardened Images | — |
| Red Hat | Red Hat Hardened Images | — |
| Red Hat | Red Hat Migration Toolkit 1.8 | — |
| Red Hat | Red Hat OpenShift AI 2.25 | — |
| Red Hat | Red Hat OpenShift AI 3.4 | — |
| Red Hat | Red Hat OpenShift AI 3.4 | — |
| Red Hat | Red Hat OpenShift AI 3.4 | — |
| Red Hat | Red Hat OpenShift AI 3.4 | — |
| Red Hat | Red Hat OpenShift AI 3.4 | — |
| Red Hat | Red Hat OpenShift AI 3.4 | — |
| Red Hat | Red Hat OpenShift AI 3.4 | — |
| Red Hat | Red Hat OpenShift Container Platform 4.19 | — |
| Red Hat | Red Hat OpenShift Container Platform 4.20 | — |
| Red Hat | Red Hat OpenShift Container Platform 4.20 | — |
| Red Hat | Red Hat OpenShift Container Platform 4.21 | — |
| Red Hat | Red Hat OpenShift Container Platform 4.21 | — |
| Red Hat | Red Hat OpenShift Container Platform 4.22 | — |
| Red Hat | Red Hat OpenShift Container Platform 4.22 | — |
| Red Hat | Red Hat Openshift Data Foundation 4.18 | — |
| Red Hat | Red Hat Openshift Data Foundation 4.18 | — |
| Red Hat | Red Hat Openshift Data Foundation 4.18 | — |
| Red Hat | Red Hat Openshift Data Foundation 4.18 | — |
| Red Hat | Red Hat Openshift Data Foundation 4.18 | — |
| Red Hat | Red Hat Openshift Data Foundation 4.18 | — |
| Red Hat | Red Hat Openshift Data Foundation 4.18 | — |
| Red Hat | Red Hat Openshift Data Foundation 4.18 | — |
| Red Hat | Red Hat Openshift Data Foundation 4.18 | — |
| Red Hat | Red Hat Openshift Data Foundation 4.18 | — |
| Red Hat | Red Hat Openshift Data Foundation 4.18 | — |
| Red Hat | Red Hat Openshift Data Foundation 4.18 | — |
| Red Hat | Red Hat Openshift Data Foundation 4.18 | — |
| Red Hat | Red Hat Openshift Data Foundation 4.18 | — |
| Red Hat | Red Hat Openshift Data Foundation 4.18 | — |
| Red Hat | Red Hat Openshift Data Foundation 4.18 | — |
| Red Hat | Red Hat Openshift Data Foundation 4.18 | — |
| Red Hat | Red Hat Openshift Data Foundation 4.18 | — |
| Red Hat | Red Hat Openshift Data Foundation 4.18 | — |
| Red Hat | Red Hat Openshift Data Foundation 4.19 | — |
| Red Hat | Red Hat Openshift Data Foundation 4.19 | — |
References
- https://github.com/websockets/ws/commit/c0327ec15a54d701eb6ccefaa8bef328cfc03086Patch
- https://github.com/websockets/ws/security/advisories/GHSA-58qx-3vcg-4xpxExploit, Patch, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:26638
- https://access.redhat.com/errata/RHSA-2026:26994
- https://access.redhat.com/errata/RHSA-2026:27171
- https://access.redhat.com/errata/RHSA-2026:29197
- https://access.redhat.com/errata/RHSA-2026:33574
- https://access.redhat.com/errata/RHSA-2026:34374
- https://access.redhat.com/errata/RHSA-2026:36754
- https://access.redhat.com/errata/RHSA-2026:36820
- https://access.redhat.com/errata/RHSA-2026:37272
- https://access.redhat.com/errata/RHSA-2026:40768
- https://access.redhat.com/errata/RHSA-2026:40792
- https://access.redhat.com/errata/RHSA-2026:41928
- https://access.redhat.com/errata/RHSA-2026:44235
- https://access.redhat.com/errata/RHSA-2026:44263
- https://access.redhat.com/errata/RHSA-2026:44267
- https://access.redhat.com/errata/RHSA-2026:48151
- https://access.redhat.com/errata/RHSA-2026:48693
- https://access.redhat.com/errata/RHSA-2026:56366
- https://access.redhat.com/errata/RHSA-2026:56431
- https://access.redhat.com/errata/RHSA-2026:56928
- https://access.redhat.com/errata/RHSA-2026:57013
- https://access.redhat.com/errata/RHSA-2026:57590
- https://access.redhat.com/errata/RHSA-2026:60520
- https://access.redhat.com/errata/RHSA-2026:65126
- https://access.redhat.com/errata/RHSA-2026:66488
- https://access.redhat.com/errata/RHSA-2026:66545
- https://access.redhat.com/errata/RHSA-2026:7655
- https://access.redhat.com/security/cve/CVE-2026-45736
- https://bugzilla.redhat.com/show_bug.cgi?id=2477914
- https://github.com/websockets/ws/security/advisories/GHSA-58qx-3vcg-4xpxExploit, Patch, Vendor Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45736.json
Timeline
- Published
- May 15, 2026
- Last modified
- Oct 26, 2026
- NVD status
- Modified