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Vulnerability record · CVE-2019-5737 · published 28 March 2019

CVE-2019-5737: Nodejs node.js uncontrolled resource consumption vulnerability

Nodejs · Node.Js

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.

7.5 CVSS 3.1 High EPSS 16% · top 3.2% CWE-400 · Uncontrolled resource consumptionCWE-770 · Allocation without limits
7.5CVSS 3.1 base score, v2 5.0
16%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
14References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00041.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00046.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00059.html Mailing ListThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:1821 Third Party Advisory
https://nodejs.org/en/blog/vulnerability/february-2019-security-releases/ Third Party Advisory
https://security.gentoo.org/glsa/202003-48 Third Party Advisory
https://security.netapp.com/advisory/ntap-20190502-0008/ Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00041.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00046.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00059.html Mailing ListThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:1821 Third Party Advisory
https://nodejs.org/en/blog/vulnerability/february-2019-security-releases/ Third Party Advisory
https://security.gentoo.org/glsa/202003-48 Third Party Advisory
https://security.netapp.com/advisory/ntap-20190502-0008/ Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2019-5737), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.