# CVE-2019-5737: Node.js 6 and 1 other: Uncontrolled Resource Consumption / Denial of Service

CVE-2019-5737 is fixed in 7 products on 2 platforms, first by Node.js 6 6.17.0, released February 28, 2019. 1 other affected product has no fix yet. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2019-5737
- Priority: High
- CVSS: 7.5 (Important)
- EPSS: 0.1618
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 28, 2019
- Weakness: CWE-400: Uncontrolled Resource Consumption / Denial of Service
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2019-5737

## Description

In Node.js including 6.x before 6.17.0, 8.x before 8.15.1, 10.x before 10.15.2, and 11.x before 11.10.1, an attacker can cause a Denial of Service (DoS) by establishing an HTTP or HTTPS connection in keep-alive mode and by sending headers very slowly. This keeps the connection and associated resources alive for a long period of time. Potential attacks are mitigated by the use of a load balancer or other proxy layer. This vulnerability is an extension of CVE-2018-12121, addressed in November and impacts all active Node.js release lines including 6.x before 6.17.0, 8.x before 8.15.1, 10.x before 10.15.2, and 11.x before 11.10.1.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Node.js 6 | 6.17.0 | [Node.js 6 6.17.0](https://patchblox.com/security/data/fix/windows-app/openjs.nodejs.6-6.17.0.md) | Feb 28, 2019 |
| Linux | nodejs RHEL 8 | 1:10.16.3-2.module+el8.0.0+4214+49953fda | [RHSA-2019:2925](https://patchblox.com/security/data/fix/linux/rhsa-2019-2925.md) | Sep 30, 2019 |
| Linux | nodejs Ubuntu 18.04.6 LTS (bionic) | 8.10.0~dfsg-2ubuntu0.4+esm1 | [nodejs 8.10.0~dfsg-2ubuntu0.4+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-nodejs-8.10.0-dfsg-2ubuntu0.4-esm1.md) | Mar 28, 2019 |
| Linux | nodejs-devel RHEL 8 | 1:10.16.3-2.module+el8.0.0+4214+49953fda | [RHSA-2019:2925](https://patchblox.com/security/data/fix/linux/rhsa-2019-2925.md) | Sep 30, 2019 |
| Linux | nodejs-docs RHEL 8 | 1:10.16.3-2.module+el8.0.0+4214+49953fda | [RHSA-2019:2925](https://patchblox.com/security/data/fix/linux/rhsa-2019-2925.md) | Sep 30, 2019 |
| Linux | nodejs-nodemon RHEL 8 | 0:1.18.3-1.module+el8+2632+6c5111ed | [RHSA-2019:2925](https://patchblox.com/security/data/fix/linux/rhsa-2019-2925.md) | Sep 30, 2019 |
| Linux | nodejs-packaging RHEL 8 | 0:17-3.module+el8+2873+aa7dfd9a | [RHSA-2019:2925](https://patchblox.com/security/data/fix/linux/rhsa-2019-2925.md) | Sep 30, 2019 |
| Linux | npm RHEL 8 | 1:6.9.0-1.10.16.3.2.module+el8.0.0+4214+49953fda | [RHSA-2019:2925](https://patchblox.com/security/data/fix/linux/rhsa-2019-2925.md) | Sep 30, 2019 |

## No fix yet

| Platform | Product | Status |
|---|---|---|
| Windows apps | Node.js 8 | no-fix |

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Data as of 2026-11-07T18:46:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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