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
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Node.js | Node.js | All versions prior to 6.17.0 | — |
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 | 8.9.3~dfsg-5 | — |
| Debian 13 | nodejs | 8.9.3~dfsg-5 | — |
| Debian 12 | nodejs | 8.9.3~dfsg-5 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | nodejs | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| 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 |
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 |
Advisories 2
- SUSE-SU-2019:0658-1 Security update for nodejs4 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0818-1 Security update for nodejs6 SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://nodejs.org/en/blog/vulnerability/february-2019-security-releases/
- openSUSE-SU-2019:1076 vendor-advisory
- openSUSE-SU-2019:1173 vendor-advisory
- https://security.netapp.com/advisory/ntap-20190502-0008/
- GLSA-202003-48 vendor-advisory