Medium severity4.4NVD Advisory· Published May 15, 2026· Updated May 19, 2026
CVE-2026-45736
CVE-2026-45736
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
wsnpm | >= 8.0.0, < 8.20.1 | 8.20.1 |
Affected products
38- osv-coords36 versionspkg:apk/chainguard/argo-workflows-ui-3.7pkg:apk/chainguard/code-serverpkg:apk/chainguard/homepagepkg:apk/chainguard/kibana-8.17pkg:apk/chainguard/kibana-8.17-bitnamipkg:apk/chainguard/kibana-8.17-iamguardedpkg:apk/chainguard/kibana-8.19pkg:apk/chainguard/kibana-8.19-bitnamipkg:apk/chainguard/kibana-8.19-iamguardedpkg:apk/chainguard/kibana-9.0pkg:apk/chainguard/kibana-9.0-bitnamipkg:apk/chainguard/kibana-9.0-iamguardedpkg:apk/chainguard/kibana-9.1pkg:apk/chainguard/kibana-9.1-iamguardedpkg:apk/chainguard/kibana-9.2pkg:apk/chainguard/kibana-9.2-iamguardedpkg:apk/chainguard/kibana-9.3pkg:apk/chainguard/kibana-9.3-iamguardedpkg:apk/chainguard/kibana-9.4pkg:apk/chainguard/kibana-9.4-iamguardedpkg:apk/chainguard/kubeflow-pipelines-frontendpkg:apk/chainguard/langfuse-2-workerpkg:apk/chainguard/langfuse-3-workerpkg:apk/chainguard/langfuse-fips-2-workerpkg:apk/chainguard/langfuse-fips-3-workerpkg:apk/chainguard/opensearch-dashboards-3-dashboards-observabilitypkg:apk/chainguard/opensearch-dashboards-3-fips-dashboards-observabilitypkg:apk/chainguard/redisinsightpkg:apk/chainguard/vitess-23pkg:apk/chainguard/wazuh-dashboard-plugins-fipspkg:apk/wolfi/argo-workflows-ui-3.7pkg:apk/wolfi/code-serverpkg:apk/wolfi/kubeflow-pipelines-frontendpkg:apk/wolfi/langfuse-3-workerpkg:apk/wolfi/opensearch-dashboards-3-dashboards-observabilitypkg:apk/wolfi/vitess-23
< 3.7.14-r4+ 35 more
- (no CPE)range: < 3.7.14-r4
- (no CPE)range: < 4.121.0-r0
- (no CPE)range: < 1.13.2-r0
- (no CPE)range: < 8.17.10-r22
- (no CPE)range: < 8.17.10-r22
- (no CPE)range: < 8.17.10-r22
- (no CPE)range: < 8.19.16-r0
- (no CPE)range: < 8.19.16-r0
- (no CPE)range: < 8.19.16-r0
- (no CPE)range: < 9.0.8-r26
- (no CPE)range: < 9.0.8-r26
- (no CPE)range: < 9.0.8-r26
- (no CPE)range: < 9.1.10-r19
- (no CPE)range: < 9.1.10-r19
- (no CPE)range: < 9.2.8-r4
- (no CPE)range: < 9.2.8-r4
- (no CPE)range: < 9.3.4-r4
- (no CPE)range: < 9.3.4-r4
- (no CPE)range: < 9.4.2-r0
- (no CPE)range: < 9.4.2-r0
- (no CPE)range: < 2.16.1-r3
- (no CPE)range: < 2.95.12-r23
- (no CPE)range: < 3.175.0-r0
- (no CPE)range: < 2.95.12-r25
- (no CPE)range: < 3.175.0-r0
- (no CPE)range: < 3.6.0-r5
- (no CPE)range: < 3.6.0-r7
- (no CPE)range: < 3.4.2-r3
- (no CPE)range: < 23.0.4-r5
- (no CPE)range: < 4.14.4-r3
- (no CPE)range: < 3.7.14-r4
- (no CPE)range: < 4.121.0-r0
- (no CPE)range: < 2.16.1-r3
- (no CPE)range: < 3.175.0-r0
- (no CPE)range: < 3.6.0-r5
- (no CPE)range: < 23.0.4-r5
Patches
Vulnerability mechanics
References
4- github.com/websockets/ws/commit/c0327ec15a54d701eb6ccefaa8bef328cfc03086nvdPatchWEB
- github.com/websockets/ws/security/advisories/GHSA-58qx-3vcg-4xpxnvdExploitPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-58qx-3vcg-4xpxghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-45736ghsaADVISORY
News mentions
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