Description
Node.js before 10.24.0, 12.21.0, 14.16.0, and 15.10.0 is vulnerable to a denial of service attack when too many connection attempts with an 'unknownProtocol' are established. This leads to a leak of file descriptors. If a file descriptor limit is configured on the system, then the server is unable to accept new connections and prevent the process also from opening, e.g. a file. If no file descriptor limit is configured, then this lead to an excessive memory usage and cause the system to run out of memory.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| NodeJS | Node | 4.0 – < 4.*, 5.0 – < 5.*, 6.0 – < 6.*, 7.0 – < 7.*, 8.0 – < 8.*, 9.0 – < 9.*, 10.0 – < 10.24.0, 11.0 – < 11.*, 12.0 – < 12.21.0, 13.0 – < 13.*, 14.0 – < 14.16.0, 15.0 – < 15.10.0 | 4.* |
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 | 12.21.0~dfsg-1 | — |
| Debian 13 | nodejs | 12.21.0~dfsg-1 | — |
| Debian 12 | nodejs | 12.21.0~dfsg-1 | — |
| Debian 10 | nodejs | 10.24.0~dfsg-1~deb10u1 | DSA-4863-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | nodejs | 10.19.0~dfsg-3ubuntu1.2 | USN-6418-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | nodejs | 8.10.0~dfsg-2ubuntu0.4+esm3 | USN-6418-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | nodejs +3 | 1:10.24.0-1.module+el8.3.0+10166+b07ac28e | RHSA-2021:0744, RHSA-2021:0735, RHSA-2021:0734 |
| RHEL 8 | nodejs-nodemon | 1.18.3-1.module+el8+2632+6c5111ed | RHSA-2021:0744, RHSA-2021:0735, RHSA-2021:0734 |
| RHEL 8 | nodejs-packaging | 17-3.module+el8.1.0+3369+37ae6a45 | RHSA-2021:0744, RHSA-2021:0735, RHSA-2021:0734 |
| RHEL 8 | npm | 1:6.14.11-1.10.24.0.1.module+el8.3.0+10166+b07ac28e | RHSA-2021:0744, RHSA-2021:0735, RHSA-2021:0734 |
| RHEL 3 | rh-nodejs10-nodejs +2 | 10.24.0-1.el7 | RHSA-2021:0827 |
| RHEL 3 | rh-nodejs10-npm | 6.14.11-10.24.0.1.el7 | RHSA-2021:0827 |
| RHEL 3 | rh-nodejs12-nodejs +2 | 12.21.0-1.el7 | RHSA-2021:0831 |
| RHEL 3 | rh-nodejs12-npm | 6.14.11-12.21.0.1.el7 | RHSA-2021:0831 |
| RHEL 3 | rh-nodejs14-nodejs +2 | 14.16.0-1.el7 | RHSA-2021:0830 |
| RHEL 3 | rh-nodejs14-npm | 6.14.11-14.16.0.1.el7 | RHSA-2021:0830 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8.2 EUS | nodejs +3 | 1:10.24.0-1.module+el8.2.0+10165+019e8570 | RHSA-2021:0740, RHSA-2021:0738 |
| RHEL 8.2 EUS | nodejs-nodemon | 1.18.3-1.module+el8.1.0+3369+37ae6a45 | RHSA-2021:0740, RHSA-2021:0738 |
| RHEL 8.2 EUS | nodejs-packaging | 17-3.module+el8.1.0+3369+37ae6a45 | RHSA-2021:0740, RHSA-2021:0738 |
| RHEL 8.2 EUS | npm | 1:6.14.11-1.10.24.0.1.module+el8.2.0+10165+019e8570 | RHSA-2021:0740, RHSA-2021:0738 |
| RHEL 8.1 EUS | nodejs +3 | 1:10.24.0-1.module+el8.1.0+10161+5cffdac6 | RHSA-2021:0741, RHSA-2021:0739 |
| RHEL 8.1 EUS | nodejs-nodemon | 1.18.3-1.module+el8.1.0+3369+37ae6a45 | RHSA-2021:0741, RHSA-2021:0739 |
| RHEL 8.1 EUS | nodejs-packaging | 17-3.module+el8.1.0+3369+37ae6a45 | RHSA-2021:0741, RHSA-2021:0739 |
| RHEL 8.1 EUS | npm | 1:6.14.11-1.10.24.0.1.module+el8.1.0+10161+5cffdac6 | RHSA-2021:0741, RHSA-2021:0739 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | nodejs +3 | 1:10.24.0-1.module_el8.3.0+2047+b07ac28e | ALSA-2021:0735 |
| AlmaLinux 8 | nodejs-nodemon | 1.18.3-1.module_el8.3.0+2023+d2377ea3 | ALSA-2021:0744, ALSA-2021:0735, ALSA-2021:0734 |
| AlmaLinux 8 | nodejs-packaging | 17-3.module_el8.3.0+2023+d2377ea3 | ALSA-2021:0744, ALSA-2021:0735, ALSA-2021:0734 |
| AlmaLinux 8 | npm | 1:6.14.11-1.10.24.0.1.module_el8.3.0+2047+b07ac28e | ALSA-2021:0735 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | nodejs | 1:10.24.0-1.module+el8.3.0+101+f84c7154 | RLSA-2021:0744, RLSA-2021:0735, RLSA-2021:0734 |
| Rocky Linux 8 | nodejs-nodemon | 1.18.3-1.module+el8.3.0+101+f84c7154 | RLSA-2021:0744, RLSA-2021:0735, RLSA-2021:0734 |
| Rocky Linux 8 | nodejs-packaging | 17-3.module+el8.3.0+101+f84c7154 | RLSA-2021:0744, RLSA-2021:0735, RLSA-2021:0734 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | nodejs10 | 10.24.0-1.33.2 | SUSE-SU-2021:0674-1 |
| SLES 15 SP2 | nodejs12 | 12.21.0-4.13.2 | SUSE-SU-2021:0651-1 |
| SLES 15 SP2 | nodejs14 | 14.16.0-5.9.1 | SUSE-SU-2021:0648-1 |
| SLES 15 SP1 | nodejs10 | 10.24.0-1.33.2 | SUSE-SU-2021:0674-1 |
| SLES 15 | nodejs10 | 10.24.0-1.33.2 | SUSE-SU-2021:0674-1 |
| SLES 12 | nodejs10 | 10.24.0-1.36.2 | SUSE-SU-2021:0673-1 |
| SLES 12 | nodejs12 | 12.21.0-1.29.2 | SUSE-SU-2021:0649-1 |
| SLES 12 | nodejs14 | 14.16.0-6.9.2 | SUSE-SU-2021:0650-1 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP1 | nodejs10 | 10.24.0-1.33.2 | SUSE-SU-2021:0674-1 |
| SLES for SAP 15 | nodejs10 | 10.24.0-1.33.2 | SUSE-SU-2021:0674-1 |
| SLE HPC 15 SP1 | nodejs10 | 10.24.0-1.33.2 | SUSE-SU-2021:0674-1 |
| SLE HPC 15 | nodejs10 | 10.24.0-1.33.2 | SUSE-SU-2021:0674-1 |
| SUSE Manager Server 4.0 | nodejs10 | 10.24.0-1.33.2 | SUSE-SU-2021:0674-1 |
| SUSE Manager Retail Branch Server 4.0 | nodejs10 | 10.24.0-1.33.2 | SUSE-SU-2021:0674-1 |
| SUSE Manager Proxy 4.0 | nodejs10 | 10.24.0-1.33.2 | SUSE-SU-2021:0674-1 |
| SUSE Enterprise Storage 6 | nodejs10 | 10.24.0-1.33.2 | SUSE-SU-2021:0674-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | nodejs14 | 14.17.5-1.2 | openSUSE-SU-2024:11096-1 |
| openSUSE Leap 15.2 | nodejs10 | 10.24.0-lp152.2.12.1 | openSUSE-SU-2021:0372-1 |
| openSUSE Leap 15.2 | nodejs12 | 12.21.0-lp152.3.12.1 | openSUSE-SU-2021:0357-1 |
| openSUSE Leap 15.2 | nodejs14 | 14.16.0-lp152.8.1 | openSUSE-SU-2021:0356-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | nodejs | 14.16.0-r0 | — |
| Alpine v3.24 | nodejs-current | 15.10.0-r0 | — |
| Alpine v3.23 | nodejs | 14.16.0-r0 | — |
| Alpine v3.23 | nodejs-current | 15.10.0-r0 | — |
| Alpine v3.22 | nodejs | 14.16.0-r0 | — |
| Alpine v3.22 | nodejs-current | 15.10.0-r0 | — |
| Alpine v3.21 | nodejs | 14.16.0-r0 | — |
| Alpine v3.21 | nodejs-current | 15.10.0-r0 | — |
| Alpine v3.20 | nodejs | 14.16.0-r0 | — |
| Alpine v3.20 | nodejs-current | 15.10.0-r0 | — |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | nodejs | 14.16.0-r0 | — |
| Alpine v3.19 | nodejs-current | 15.10.0-r0 | — |
| Alpine v3.18 | nodejs | 14.16.0-r0 | — |
| Alpine v3.18 | nodejs-current | 15.10.0-r0 | — |
| Alpine v3.17 | nodejs | 14.16.0-r0 | — |
| Alpine v3.17 | nodejs-current | 15.10.0-r0 | — |
| Alpine v3.16 | nodejs | 14.16.0-r0 | — |
| Alpine v3.16 | nodejs-current | 15.10.0-r0 | — |
| Alpine v3.15 | nodejs | 14.16.0-r0 | — |
| Alpine v3.15 | nodejs-current | 15.10.0-r0 | — |
| Alpine v3.14 | nodejs | 14.16.0-r0 | — |
| Alpine v3.14 | nodejs-current | 15.10.0-r0 | — |
| Alpine v3.13 | nodejs | 14.16.0-r0 | — |
| Alpine v3.13 | nodejs-current | 15.10.0-r0 | — |
| Alpine v3.12 | nodejs | 12.21.0-r0 | — |
| Alpine v3.11 | nodejs | 12.21.0-r0 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | nodejs +3 | 1:10.24.0-1.module+el8.3.0+9671+154373c8 | ELSA-2021-0744, ELSA-2021-0735, ELSA-2021-0734 |
| Oracle Linux 8 | nodejs-nodemon | 1.18.3-1.module+el8.1.0+5392+4d6b561f | ELSA-2021-0744, ELSA-2021-0735, ELSA-2021-0734 |
| Oracle Linux 8 | nodejs-packaging | 17-3.module+el8.1.0+5392+4d6b561f | ELSA-2021-0744, ELSA-2021-0735, ELSA-2021-0734 |
| Oracle Linux 8 | npm | 1:6.14.11-1.10.24.0.1.module+el8.3.0+9671+154373c8 | ELSA-2021-0744, ELSA-2021-0735, ELSA-2021-0734 |
Advisories 36
- ALSA-2021:0744 Important: nodejs:14 security and bug fix update AlmaLinux Security Advisories · Nov 6, 2026
- ALSA-2021:0734 Important: nodejs:12 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2021:0735 Important: nodejs:10 security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2021:0831 Red Hat Security Advisory: rh-nodejs12-nodejs security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2021:0827 Red Hat Security Advisory: rh-nodejs10-nodejs security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2021:0830 Red Hat Security Advisory: rh-nodejs14-nodejs security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2021:0744 Red Hat Security Advisory: nodejs:14 security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2021:0740 Red Hat Security Advisory: nodejs:12 security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2021:0741 Red Hat Security Advisory: nodejs:10 security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2021:0739 Red Hat Security Advisory: nodejs:12 security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2021:0738 Red Hat Security Advisory: nodejs:10 security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2021:0735 Red Hat Security Advisory: nodejs:10 security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2021:0734 Red Hat Security Advisory: nodejs:12 security update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- USN-6418-1 nodejs vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-4863-1 nodejs - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2021:0735 Important: nodejs:10 security update Rocky Linux Security Advisories · Feb 5, 2026
- RLSA-2021:0744 Important: nodejs:14 security and bug fix update Rocky Linux Security Advisories · Feb 4, 2026
- RLSA-2021:0734 Important: nodejs:12 security update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2021:0651-1 Security update for nodejs12 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0356-1 Security update for nodejs14 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0674-1 Security update for nodejs10 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0357-1 Security update for nodejs12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0648-1 Security update for nodejs14 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0673-1 Security update for nodejs10 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11096-1 nodejs14-14.17.5-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0649-1 Security update for nodejs12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0650-1 Security update for nodejs14 SUSE / openSUSE Security Updates · Feb 4, 2026
- FSA-202302 Festo: Several vulnerabilities in FactoryViews CERT@VDE · Feb 2, 2026
- openSUSE-SU-2021:0372-1 Security update for nodejs10 SUSE / openSUSE Security Updates · May 7, 2025
- ICSA-22-069-09 Siemens SINEC INS CISA ICS & IT advisories · May 6, 2025
- WID-SEC-2023-0485 Node.js: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · May 9, 2024
- ICSA-22-090-02 Hitachi Energy e-mesh EMS CISA ICS & IT advisories · Mar 31, 2022
- SSA-389290 SSA-389290: Third-Party Component Vulnerabilities in SINEC INS Siemens ProductCERT · Mar 8, 2022
- ELSA-2021-0744 Important: nodejs:14 security and bug fix update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Mar 9, 2021
- ELSA-2021-0735 Important: nodejs:10 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Mar 5, 2021
- ELSA-2021-0734 Important: nodejs:12 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Mar 5, 2021
References
- https://nodejs.org/en/blog/vulnerability/february-2021-security-releases/
- https://hackerone.com/reports/1043360
- FEDORA-2021-a760169c3c vendor-advisory
- FEDORA-2021-f6bd75e9d4 vendor-advisory
- FEDORA-2021-6aaba80ba2 vendor-advisory
- https://www.oracle.com/security-alerts/cpuApr2021.html
- https://security.netapp.com/advisory/ntap-20210416-0001/
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf