What’s Vulnerable › Vulnerabilities

CVE-2019-5739

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-03-28 · updated 2026-06-17
• Weakness: CWE-400

Description

Keep-alive HTTP and HTTPS connections can remain open and inactive for up to 2 minutes in Node.js 6.16.0 and earlier. Node.js 8.0.0 introduced a dedicated server.keepAliveTimeout which defaults to 5 seconds. The behavior in Node.js 6.16.0 and earlier is a potential Denial of Service (DoS) attack vector. Node.js 6.17.0 introduces server.keepAliveTimeout and the 5-second default.

Affected products

• Node.js: through 6.16.0
• openSUSE Leap: 42.3

References

• http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00041.html
• http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00046.html
• https://nodejs.org/en/blog/vulnerability/february-2019-security-releases/
• https://security.gentoo.org/glsa/202003-48
• https://security.netapp.com/advisory/ntap-20190502-0008/
• http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00041.html
• http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00046.html
• https://nodejs.org/en/blog/vulnerability/february-2019-security-releases/
• https://security.gentoo.org/glsa/202003-48
• https://security.netapp.com/advisory/ntap-20190502-0008/

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