CVE-2026-45736 (GCVE-0-2026-45736)
Vulnerability from cvelistv5
Published
2026-05-15 14:53
Modified
2026-05-16 01:09
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-908 - Use of Uninitialized Resource
Summary
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.
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| websockets | ws |
Version: >= 8.0.0, < 8.20.1 |
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"id": "CVE-2026-45736",
"options": [
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"Technical Impact": "partial"
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"role": "CISA Coordinator",
"timestamp": "2026-05-16T01:08:38.777055Z",
"version": "2.0.3"
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"providerMetadata": {
"dateUpdated": "2026-05-16T01:09:15.903Z",
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"url": "https://github.com/websockets/ws/security/advisories/GHSA-58qx-3vcg-4xpx"
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"cna": {
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"vendor": "websockets",
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],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N",
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"discovery": "UNKNOWN"
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"title": "ws: Uninitialized memory disclosure"
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"state": "PUBLISHED"
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"dataType": "CVE_RECORD",
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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