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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Node.js | Node.js | All versions prior to 6.17.0, All versions prior to 8.15.1, All versions prior to 10.15.2, All versions prior to 11.10.1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | nodejs | 10.15.2~dfsg-1 | — |
| Debian 13 | nodejs | 10.15.2~dfsg-1 | — |
| Debian 12 | nodejs | 10.15.2~dfsg-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | nodejs | 8.10.0~dfsg-2ubuntu0.4+esm1 | USN-4796-1 |
| Ubuntu Pro 16.04 LTS | nodejs | 4.2.6~dfsg-1ubuntu4.2+esm1 | USN-4796-1 |
| Ubuntu Pro 14.04 LTS | nodejs | 0.10.25~dfsg2-2ubuntu1.2+esm1 | USN-4796-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | nodejs +2 | 1:10.16.3-2.module+el8.0.0+4214+49953fda | RHSA-2019:2925 |
| RHEL 8 | nodejs-nodemon | 1.18.3-1.module+el8+2632+6c5111ed | RHSA-2019:2925 |
| RHEL 8 | nodejs-packaging | 17-3.module+el8+2873+aa7dfd9a | RHSA-2019:2925 |
| RHEL 8 | npm | 1:6.9.0-1.10.16.3.2.module+el8.0.0+4214+49953fda | RHSA-2019:2925 |
| RHEL 3 | rh-nodejs10 +2 | 3.2-3.el7 | RHSA-2019:2939 |
| RHEL 3 | rh-nodejs10-nodejs +2 | 10.16.3-3.el7 | RHSA-2019:2939 |
| RHEL 3 | rh-nodejs10-npm | 6.9.0-10.16.3.3.el7 | RHSA-2019:2939 |
| RHEL 3 | rh-nodejs8-nodejs +2 | 8.16.0-1.el7 | RHSA-2019:1821 |
| RHEL 3 | rh-nodejs8-npm | 6.4.1-8.16.0.1.el7 | RHSA-2019:1821 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | nodejs-nodemon | 1.18.3-1.module_el8.3.0+2023+d2377ea3 | ALSA-2019:2925 |
| AlmaLinux 8 | nodejs-packaging | 17-3.module_el8.3.0+2023+d2377ea3 | ALSA-2019:2925 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | nodejs-nodemon | 1.18.3-1.module+el8.3.0+101+f84c7154 | RLSA-2019:2925 |
| Rocky Linux 8 | nodejs-packaging | 17-3.module+el8.3.0+101+f84c7154 | RLSA-2019:2925 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | nodejs10 | 10.15.2-1.6.1 | SUSE-SU-2019:0627-1 |
| SLES 15 | nodejs8 | 8.15.1-3.14.1 | SUSE-SU-2019:0635-1 |
| SLES 12 | nodejs10 | 10.15.2-1.6.1 | SUSE-SU-2019:0636-1 |
| SLES 12 | nodejs4 | 4.9.1-15.20.1 | SUSE-SU-2019:0658-1 |
| SLES 12 | nodejs6 | 6.17.0-11.24.1 | SUSE-SU-2019:0818-1 |
| SLES 11 SP4 | MozillaFirefox | 68.2.0-78.51.4 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | MozillaFirefox-branding-SLED | 68-21.9.8 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | firefox-atk | 2.26.1-2.8.4 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | firefox-cairo | 1.15.10-2.13.4 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | firefox-gdk-pixbuf | 2.36.11-2.8.4 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | firefox-glib2 | 2.54.3-2.14.7 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | firefox-gtk3 | 3.10.9-2.15.3 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | firefox-harfbuzz | 1.7.5-2.7.4 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | firefox-libffi | 3.2.1.git259-2.3.3 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | firefox-libffi-gcc5 | 5.3.1+r233831-14.1 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | firefox-pango | 1.40.14-2.7.4 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | mozilla-nspr | 4.21-29.6.1 | SUSE-SU-2019:14246-1 |
| SLES 11 SP4 | mozilla-nss | 3.45-38.9.3 | SUSE-SU-2019:14246-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE OpenStack Cloud Crowbar 8 | nodejs6 | 6.17.0-11.24.1 | SUSE-SU-2019:0818-1 |
| SUSE OpenStack Cloud 7 | nodejs6 | 6.17.0-11.24.1 | SUSE-SU-2019:0818-1 |
| SUSE Enterprise Storage 4 | nodejs4 | 4.9.1-15.20.1 | SUSE-SU-2019:0658-1 |
| SUSE Enterprise Storage 4 | nodejs6 | 6.17.0-11.24.1 | SUSE-SU-2019:0818-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | nodejs | 10.15.3-r0 | — |
| Alpine v3.24 | nodejs-current | 11.10.1-r0 | — |
| Alpine v3.23 | nodejs | 10.15.3-r0 | — |
| Alpine v3.23 | nodejs-current | 11.10.1-r0 | — |
| Alpine v3.22 | nodejs | 10.15.3-r0 | — |
| Alpine v3.22 | nodejs-current | 11.10.1-r0 | — |
| Alpine v3.21 | nodejs | 10.15.3-r0 | — |
| Alpine v3.21 | nodejs-current | 11.10.1-r0 | — |
| Alpine v3.20 | nodejs | 10.15.3-r0 | — |
| Alpine v3.20 | nodejs-current | 11.10.1-r0 | — |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | nodejs | 10.15.3-r0 | — |
| Alpine v3.19 | nodejs-current | 11.10.1-r0 | — |
| Alpine v3.18 | nodejs | 10.15.3-r0 | — |
| Alpine v3.18 | nodejs-current | 11.10.1-r0 | — |
| Alpine v3.17 | nodejs | 10.15.3-r0 | — |
| Alpine v3.17 | nodejs-current | 11.10.1-r0 | — |
| Alpine v3.16 | nodejs | 10.15.3-r0 | — |
| Alpine v3.16 | nodejs-current | 11.10.1-r0 | — |
| Alpine v3.15 | nodejs | 10.15.3-r0 | — |
| Alpine v3.15 | nodejs-current | 11.10.1-r0 | — |
| Alpine v3.14 | nodejs | 10.15.3-r0 | — |
| Alpine v3.14 | nodejs-current | 11.10.1-r0 | — |
| Alpine v3.13 | nodejs | 10.15.3-r0 | — |
| Alpine v3.13 | nodejs-current | 11.10.1-r0 | — |
| Alpine v3.12 | nodejs | 10.15.3-r0 | — |
| Alpine v3.12 | nodejs-current | 11.10.1-r0 | — |
| Alpine v3.11 | nodejs | 10.15.3-r0 | — |
| Alpine v3.11 | nodejs-current | 11.10.1-r0 | — |
| Alpine v3.10 | nodejs | 10.15.3-r0 | — |
| Alpine v3.10 | nodejs-current | 11.10.1-r0 | — |
| Alpine v3.9 | nodejs | 10.15.3-r0 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
-
beelzebruh/cve-2019-5737 ★ 0 · Feb 24, 2019
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 13
- ALSA-2019:2925 Important: nodejs:10 security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2019:2939 Red Hat Security Advisory: rh-nodejs10-nodejs security update Red Hat Security Advisories (RHSA) · Oct 13, 2026
- RHSA-2019:2925 Red Hat Security Advisory: nodejs:10 security update Red Hat Security Advisories (RHSA) · Oct 13, 2026
- RHSA-2019:1821 Red Hat Security Advisory: rh-nodejs8-nodejs security update Red Hat Security Advisories (RHSA) · Aug 5, 2026
- USN-4796-1 nodejs vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- RLSA-2019:2925 Important: nodejs:10 security update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2019:0627-1 Security update for nodejs10 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0636-1 Security update for nodejs10 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0658-1 Security update for nodejs4 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0635-1 Security update for nodejs8 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0818-1 Security update for nodejs6 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:14246-1 Security update for Mozilla Firefox SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-2535 Red Hat rh-nodejs8-nodejs: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 3, 2023
References
- https://nodejs.org/en/blog/vulnerability/february-2019-security-releases/
- openSUSE-SU-2019:1076 vendor-advisory
- openSUSE-SU-2019:1173 vendor-advisory
- openSUSE-SU-2019:1211 vendor-advisory
- https://security.netapp.com/advisory/ntap-20190502-0008/
- RHSA-2019:1821 vendor-advisory
- GLSA-202003-48 vendor-advisory