ws is an open source WebSocket client and server for Node.js. A request with a number of headers exceeding theserver.maxHeadersCount threshold could be used to crash a ws server. The vulnerability was fixed in [email protected] (e55e510) and backported to [email protected] (22c2876), [email protected] (eeb76d3), and [email protected] (4abd8f6). In vulnerable versions of ws, the issue can be mitigated in the following ways: 1. Reduce the maximum allowed length of the request headers using the --max-http-header-size=size and/or the maxHeaderSize options so that no more headers than the server.maxHeadersCount limit can be sent. 2. Set server.maxHeadersCount to 0 so that no limit is applied.
CVE-2024-37890
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 1.3% (70th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5HIGHmedium confidence
- EG Risk
- 65EG Risk 65/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity75% × 45%Exploitation40% × 40%Automatability100% × 15%CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 1.3%
- EPSS %ILE
- 70th
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
June 17, 2024
Last Modified
April 15, 2026
References (16)
- security-advisories@githubhttps://github.com/websockets/ws/commit/22c28763234aa75a7e1b76f5c01c181260d7917f
- security-advisories@githubhttps://github.com/websockets/ws/commit/4abd8f6de4b0b65ef80b3ff081989479ed93377e
- security-advisories@githubhttps://github.com/websockets/ws/commit/e55e5106f10fcbaac37cfa89759e4cc0d073a52c
- security-advisories@githubhttps://github.com/websockets/ws/commit/eeb76d313e2a00dd5247ca3597bba7877d064a63
- security-advisories@githubhttps://github.com/websockets/ws/issues/2230
- security-advisories@githubhttps://github.com/websockets/ws/pull/2231
- security-advisories@githubhttps://github.com/websockets/ws/security/advisories/GHSA-3h5v-q93c-6h6q
- security-advisories@githubhttps://nodejs.org/api/http.html#servermaxheaderscount
- af854a3a-2127-422b-91ae-364da2661108https://github.com/websockets/ws/commit/22c28763234aa75a7e1b76f5c01c181260d7917f
- af854a3a-2127-422b-91ae-364da2661108https://github.com/websockets/ws/commit/4abd8f6de4b0b65ef80b3ff081989479ed93377e
- af854a3a-2127-422b-91ae-364da2661108https://github.com/websockets/ws/commit/e55e5106f10fcbaac37cfa89759e4cc0d073a52c
- af854a3a-2127-422b-91ae-364da2661108https://github.com/websockets/ws/commit/eeb76d313e2a00dd5247ca3597bba7877d064a63
- af854a3a-2127-422b-91ae-364da2661108https://github.com/websockets/ws/issues/2230
- af854a3a-2127-422b-91ae-364da2661108https://github.com/websockets/ws/pull/2231
- af854a3a-2127-422b-91ae-364da2661108https://github.com/websockets/ws/security/advisories/GHSA-3h5v-q93c-6h6q
Vendor Advisories for CVE-2024-37890(12)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- CVE-2024-37890Microsoft Security Response Center (MSRC)High
Denial of service when handling a request with many HTTP headers in ws
- RHSA-2026:3712Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat OpenShift Pipelines Release 1.15.4
- RHSA-2026:3710Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat OpenShift Pipelines Release 1.15.3
- RHSA-2025:8551Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat OpenShift Data Foundation 4.14.18 Bug Fix Update
- RHSA-2025:8544Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat OpenShift Data Foundation 4.15.14 Bug Fix Update
- RHBA-2025:4932Red Hat Product SecurityMedium
Red Hat Bug Fix Advisory: dotnet8.0 bug fix and enhancement update
- RHBA-2024:9549Red Hat Product SecurityMedium
Red Hat Bug Fix Advisory: .NET 8.0 bug fix and enhancement update
- RHBA-2024:9550Red Hat Product SecurityMedium
Red Hat Bug Fix Advisory: .NET 6.0 bug fix and enhancement update
- +4 more
Patch Availability(7)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| redhat | openshift-pipelines/pipelines-hub-ui-rhel8:1772036471 | 2026-03-04 | redhat |
| redhat | odf4/odf-console-rhel9:v4.15.14-2 | 2025-06-04 | redhat |
| redhat | odf4/odf-console-rhel9:v4.14.18-3 | 2025-06-04 | redhat |
| redhat | rhdh/rhdh-hub-rhel9:1.3-124 | 2024-11-11 | redhat |
| redhat | odf4/odf-console-rhel9:v4.16.2-2 | 2024-09-18 | redhat |
| redhat | odf4/mcg-core-rhel9:v4.16.1-2 | 2024-08-19 | redhat |
| redhat | odf4/mcg-core-rhel9:v4.16.0-60 | 2024-07-17 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(5 across 5 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| node-ws | 7.4.2+~cs18.0.8-2 ... 8.8.1+~cs13.7.3-1 (17 versions) |
| — |
Debian:12(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| node-ws | 8.11.0+~cs13.7.3-1 ... 8.21.3+~cs14.19.1-1 (10 versions) |
| — |
Debian:13(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| node-ws | — |
| — |
Debian:14(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| node-ws | — |
| — |
npm(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| ws | — |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 6× in last 7d / 32× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 207 total refreshes for this CVE.
- 2026-10-09 20:05 UTCEPSS rescore
- 2026-10-08 17:07 UTCEPSS rescore
- 2026-10-07 23:46 UTCEPSS rescore
- 2026-10-07 10:54 UTCOSV refresh
- 2026-10-06 15:15 UTCEPSS rescore
- 2026-10-05 17:41 UTCEPSS rescore
- 2026-10-03 14:24 UTCEPSS rescore
- 2026-10-01 19:48 UTCEPSS rescore
- 2026-09-30 19:47 UTCEG score recompute
- 2026-09-30 15:01 UTCEPSS rescore
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- 2026-09-28 13:49 UTCEPSS rescore
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- 2026-09-18 19:26 UTCEPSS rescore
- 2026-09-17 17:06 UTCOSV refresh
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- 2026-09-16 14:06 UTCEPSS rescore
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- 2026-08-29 17:13 UTCOSV refresh
- 2026-08-28 21:39 UTCEPSS rescore
- 2026-08-27 14:23 UTCEPSS rescore
- 2026-08-26 14:44 UTCEPSS rescore
- 2026-08-25 13:47 UTCEPSS rescore
- 2026-08-24 14:15 UTCEPSS rescore
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- 2026-08-21 23:47 UTCEPSS rescore
- 2026-08-20 22:53 UTCEPSS rescore
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- 2026-08-16 02:13 UTCEPSS rescore
- 2026-08-15 01:28 UTCEPSS rescore
- 2026-08-13 21:59 UTCEPSS rescore
- 2026-08-13 04:13 UTCOSV refresh
- 2026-08-12 13:49 UTCEPSS rescore
- 2026-08-11 13:40 UTCEPSS rescore
- 2026-08-10 23:58 UTCEPSS rescore
- 2026-08-09 13:45 UTCEPSS rescore
- 2026-08-08 16:35 UTCEPSS rescore
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- 2026-08-06 13:45 UTCEPSS rescore
- 2026-08-05 19:16 UTCEPSS rescore
- 2026-08-04 15:08 UTCEPSS rescore
- 2026-08-04 10:36 UTCEPSS rescore
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- 2026-07-30 16:26 UTCEPSS rescore
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- 2026-07-30 01:29 UTCEPSS rescore
- 2026-07-28 15:34 UTCEPSS rescore
- 2026-07-28 12:20 UTCOSV refresh
- 2026-07-27 14:11 UTCEPSS rescore
- 2026-07-26 14:53 UTCEPSS rescore
- 2026-07-25 14:16 UTCEPSS rescore
- 2026-07-24 14:16 UTCEPSS rescore
- 2026-07-23 14:17 UTCEPSS rescore
- 2026-07-23 14:17 UTCEPSS rescore
- 2026-07-23 02:38 UTCEG score recompute
- 2026-07-22 14:07 UTCEPSS rescore
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- 2026-07-18 10:03 UTCEPSS rescore
- 2026-07-16 17:02 UTCEPSS rescore
- 2026-07-15 16:56 UTCEPSS rescore
Related CVEs(same product + same vendor + same CWE)
Same product
5 shownDebian:11:node-ws
Same vendor
10 shownredhat:RHBA-2024:9054 · redhat:RHSA-2024:6755 · redhat:RHSA-2026:3710
Frequently asked(5)
What is CVE-2024-37890?
When was CVE-2024-37890 disclosed?
Is CVE-2024-37890 actively exploited?
What is the CVSS score of CVE-2024-37890?
How do I remediate CVE-2024-37890?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2024-37890
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