Description
Node.js versions before 10.23.1, 12.20.1, 14.15.4, 15.5.1 allow two copies of a header field in an HTTP request (for example, two Transfer-Encoding header fields). In this case, Node.js identifies the first header field and ignores the second. This can lead to HTTP Request Smuggling.
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 – < 10.23.1, 11.0 – < 11.*, 12.0 – < 12.20.1, 13.0 – < 13.*, 14.0 – < 14.15.4, 15.0 – < 15.5.1 | 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 | http-parser | 2.9.4-5 | — |
| Debian 14 | nodejs | 12.20.1~dfsg-1 | — |
| Debian 13 | http-parser | 2.9.4-5 | — |
| Debian 13 | nodejs | 12.20.1~dfsg-1 | — |
| Debian 12 | http-parser | 2.9.4-5 | — |
| Debian 12 | nodejs | 12.20.1~dfsg-1 | — |
| Debian 10 | http-parser | 2.8.1-1+deb10u3 | DLA-3224-1 |
| Debian 10 | nodejs | 10.23.1~dfsg-1~deb10u1 | DSA-4826-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | http-parser | No fix yet | — |
| Ubuntu 20.04 LTS | http-parser | No fix yet | — |
| Ubuntu 20.04 LTS | nodejs | 10.19.0~dfsg-3ubuntu1.1 | USN-6380-1 |
| Ubuntu 18.04 LTS | http-parser | 2.7.1-2ubuntu0.1 | USN-5563-1 |
| Ubuntu 16.04 LTS | http-parser | No fix yet | — |
| Ubuntu 14.04 LTS | http-parser | No fix yet | — |
Show 3 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+esm2 | USN-6380-1 |
| Ubuntu Pro 16.04 LTS | nodejs | 4.2.6~dfsg-1ubuntu4.2+esm2 | USN-6380-1 |
| Ubuntu Pro 14.04 LTS | nodejs | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | nodejs +3 | 1:10.23.1-1.module+el8.3.0+9502+012d8a97 | RHSA-2021:0551, RHSA-2021:0549, RHSA-2021:0548 |
| RHEL 8 | nodejs-nodemon | 1.18.3-1.module+el8+2632+6c5111ed | RHSA-2021:0551, RHSA-2021:0549, RHSA-2021:0548 |
| RHEL 8 | nodejs-packaging | 17-3.module+el8.1.0+3369+37ae6a45 | RHSA-2021:0551, RHSA-2021:0549, RHSA-2021:0548 |
| RHEL 8 | npm | 1:6.14.10-1.10.23.1.1.module+el8.3.0+9502+012d8a97 | RHSA-2021:0551, RHSA-2021:0549, RHSA-2021:0548 |
| RHEL 3 | rh-nodejs10-nodejs +2 | 10.23.1-2.el7 | RHSA-2021:0521 |
| RHEL 3 | rh-nodejs10-npm | 6.14.10-10.23.1.2.el7 | RHSA-2021:0521 |
| RHEL 3 | rh-nodejs12-nodejs +2 | 12.20.1-1.el7 | RHSA-2021:0485 |
| RHEL 3 | rh-nodejs12-nodejs-nodemon | 2.0.3-1.el7 | RHSA-2021:0485 |
| RHEL 3 | rh-nodejs12-npm | 6.14.10-12.20.1.1.el7 | RHSA-2021:0485 |
| RHEL 3 | rh-nodejs14-nodejs +2 | 14.15.4-2.el7 | RHSA-2021:0421 |
| RHEL 3 | rh-nodejs14-npm | 6.14.10-14.15.4.2.el7 | RHSA-2021:0421 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | nodejs-nodemon | 1.18.3-1.module_el8.3.0+2023+d2377ea3 | ALSA-2021:0551, ALSA-2021:0549, ALSA-2021:0548 |
| AlmaLinux 8 | nodejs-packaging | 17-3.module_el8.3.0+2023+d2377ea3 | ALSA-2021:0551, ALSA-2021:0549, ALSA-2021:0548 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | nodejs-nodemon | 1.18.3-1.module+el8.3.0+101+f84c7154 | RLSA-2021:0551, RLSA-2021:0549, RLSA-2021:0548 |
| Rocky Linux 8 | nodejs-packaging | 17-3.module+el8.3.0+101+f84c7154 | RLSA-2021:0551, RLSA-2021:0549, RLSA-2021:0548 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | nodejs10 | 10.23.1-1.30.1 | SUSE-SU-2021:0060-1 |
| SLES 15 SP2 | nodejs12 | 12.20.1-4.10.1 | SUSE-SU-2021:0062-1 |
| SLES 15 SP2 | nodejs14 | 14.15.4-5.6.1 | SUSE-SU-2021:0061-1 |
| SLES 15 SP2 | nodejs8 | 8.17.0-10.6.1 | SUSE-SU-2021:0121-1 |
| SLES 15 SP1 | nodejs10 | 10.23.1-1.30.1 | SUSE-SU-2021:0060-1 |
| SLES 15 SP1 | nodejs8 | 8.17.0-3.42.2 | SUSE-SU-2021:0224-1 |
| SLES 15 | nodejs10 | 10.23.1-1.30.1 | SUSE-SU-2021:0060-1 |
| SLES 15 | nodejs8 | 8.17.0-3.42.2 | SUSE-SU-2021:0224-1 |
| SLES 12 | nodejs10 | 10.23.1-1.33.1 | SUSE-SU-2021:0082-1 |
| SLES 12 | nodejs12 | 12.20.1-1.26.1 | SUSE-SU-2021:0068-1 |
| SLES 12 | nodejs14 | 14.15.4-6.6.1 | SUSE-SU-2021:0107-1 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP1 | nodejs8 | 8.17.0-3.42.2 | SUSE-SU-2021:0224-1 |
| SLES for SAP 15 | nodejs10 | 10.23.1-1.30.1 | SUSE-SU-2021:0060-1 |
| SLES for SAP 15 | nodejs8 | 8.17.0-3.42.2 | SUSE-SU-2021:0224-1 |
| SLE HPC 15 SP1 | nodejs8 | 8.17.0-3.42.2 | SUSE-SU-2021:0224-1 |
| SLE HPC 15 | nodejs10 | 10.23.1-1.30.1 | SUSE-SU-2021:0060-1 |
| SLE HPC 15 | nodejs8 | 8.17.0-3.42.2 | SUSE-SU-2021:0224-1 |
| SUSE Manager Server 4.0 | nodejs8 | 8.17.0-3.42.2 | SUSE-SU-2021:0224-1 |
| SUSE Manager Retail Branch Server 4.0 | nodejs8 | 8.17.0-3.42.2 | SUSE-SU-2021:0224-1 |
| SUSE Manager Proxy 4.0 | nodejs8 | 8.17.0-3.42.2 | SUSE-SU-2021:0224-1 |
| SUSE Enterprise Storage 6 | nodejs8 | 8.17.0-3.42.2 | SUSE-SU-2021:0224-1 |
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 | 10.23.1-lp152.2.9.1 | openSUSE-SU-2021:0065-1 |
| openSUSE Leap 15.2 | nodejs12 | 12.20.1-lp152.3.9.1 | openSUSE-SU-2021:0064-1 |
| openSUSE Leap 15.2 | nodejs14 | 14.15.4-lp152.5.1 | openSUSE-SU-2021:0066-1 |
| openSUSE Leap 15.2 | nodejs8 | 8.17.0-lp152.3.8.1 | openSUSE-SU-2021:0195-1 |
| openSUSE Leap 15.1 | nodejs10 | 10.23.1-lp151.2.15.1 | openSUSE-SU-2021:0082-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | nodejs | 14.15.4-r0 | — |
| Alpine v3.24 | nodejs-current | 15.5.1-r0 | — |
| Alpine v3.23 | nodejs | 14.15.4-r0 | — |
| Alpine v3.23 | nodejs-current | 15.5.1-r0 | — |
| Alpine v3.22 | nodejs | 14.15.4-r0 | — |
| Alpine v3.22 | nodejs-current | 15.5.1-r0 | — |
| Alpine v3.21 | nodejs | 14.15.4-r0 | — |
| Alpine v3.21 | nodejs-current | 15.5.1-r0 | — |
| Alpine v3.20 | nodejs | 14.15.4-r0 | — |
| Alpine v3.20 | nodejs-current | 15.5.1-r0 | — |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | nodejs | 14.15.4-r0 | — |
| Alpine v3.19 | nodejs-current | 15.5.1-r0 | — |
| Alpine v3.18 | nodejs | 14.15.4-r0 | — |
| Alpine v3.18 | nodejs-current | 15.5.1-r0 | — |
| Alpine v3.17 | nodejs | 14.15.4-r0 | — |
| Alpine v3.17 | nodejs-current | 15.5.1-r0 | — |
| Alpine v3.16 | nodejs | 14.15.4-r0 | — |
| Alpine v3.16 | nodejs-current | 15.5.1-r0 | — |
| Alpine v3.15 | nodejs | 14.15.4-r0 | — |
| Alpine v3.15 | nodejs-current | 15.5.1-r0 | — |
| Alpine v3.14 | nodejs | 14.15.4-r0 | — |
| Alpine v3.14 | nodejs-current | 15.5.1-r0 | — |
| Alpine v3.13 | nodejs | 14.15.4-r0 | — |
| Alpine v3.13 | nodejs-current | 15.5.1-r0 | — |
| Alpine v3.12 | nodejs | 12.20.1-r0 | — |
| Alpine v3.11 | nodejs | 12.20.1-r0 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | nodejs +3 | 1:10.23.1-1.module+el8.3.0+9642+87902f83 | ELSA-2021-0551, ELSA-2021-0549, ELSA-2021-0548 |
| Oracle Linux 8 | nodejs-nodemon | 1.18.3-1.module+el8.1.0+5392+4d6b561f | ELSA-2021-0551, ELSA-2021-0549, ELSA-2021-0548 |
| Oracle Linux 8 | nodejs-packaging | 17-3.module+el8.1.0+5392+4d6b561f | ELSA-2021-0551, ELSA-2021-0549, ELSA-2021-0548 |
| Oracle Linux 8 | npm | 1:6.14.10-1.10.23.1.1.module+el8.3.0+9642+87902f83 | ELSA-2021-0551, ELSA-2021-0549, ELSA-2021-0548 |
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
-
progfay/nodejs-http-transfer-encoding-smuggling-poc ★ 2 · Jan 5, 2021
PoC of HTTP Request Smuggling in nodejs (CVE-2020-8287)
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 37
- ALSA-2021:0549 Moderate: nodejs:12 security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2021:0551 Moderate: nodejs:14 security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2021:0548 Moderate: nodejs:10 security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2021:0521 Red Hat Security Advisory: rh-nodejs10-nodejs security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2021:0548 Red Hat Security Advisory: nodejs:10 security update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- RHSA-2021:0551 Red Hat Security Advisory: nodejs:14 security and bug fix update Red Hat Security Advisories (RHSA) · Oct 13, 2026
- RHSA-2021:0421 Red Hat Security Advisory: rh-nodejs14-nodejs security update Red Hat Security Advisories (RHSA) · Oct 13, 2026
- RHSA-2021:0549 Red Hat Security Advisory: nodejs:12 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2021:0485 Red Hat Security Advisory: rh-nodejs12-nodejs security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- USN-6380-1 nodejs vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- USN-5563-1 http-parser vulnerability Ubuntu Security Notices (USN) · Apr 27, 2026
- DSA-4826-1 nodejs - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3224-1 http-parser - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2021:0549 Moderate: nodejs:12 security update Rocky Linux Security Advisories · Feb 5, 2026
- RLSA-2021:0551 Moderate: nodejs:14 security and bug fix update Rocky Linux Security Advisories · Feb 4, 2026
- RLSA-2021:0548 Moderate: nodejs:10 security update Rocky Linux Security Advisories · Feb 4, 2026
- openSUSE-SU-2021:0065-1 Security update for nodejs10 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0195-1 Security update for nodejs8 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0082-1 Security update for nodejs10 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0068-1 Security update for nodejs12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0082-1 Security update for nodejs10 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0061-1 Security update for nodejs14 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0066-1 Security update for nodejs14 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0107-1 Security update for nodejs14 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0224-1 Security update for nodejs8 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0060-1 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-2021:0062-1 Security update for nodejs12 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0064-1 Security update for nodejs12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0121-1 Security update for nodejs8 SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2022-1000 Node.js: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 19, 2025
- ICSA-22-069-09 Siemens SINEC INS CISA ICS & IT advisories · May 6, 2025
- ICSA-22-111-03 Hitachi Energy MicroSCADA Pro/X SYS600 CISA ICS & IT advisories · Apr 21, 2022
- SSA-389290 SSA-389290: Third-Party Component Vulnerabilities in SINEC INS Siemens ProductCERT · Mar 8, 2022
- ELSA-2021-0548 Moderate: nodejs:10 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Feb 20, 2021
- ELSA-2021-0549 Moderate: nodejs:12 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Feb 20, 2021
- ELSA-2021-0551 Moderate: nodejs:14 security and bug fix update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Feb 20, 2021
References
- https://hackerone.com/reports/1002188
- https://nodejs.org/en/blog/vulnerability/january-2021-security-releases/
- DSA-4826 vendor-advisory
- FEDORA-2021-fb1a136393 vendor-advisory
- GLSA-202101-07 vendor-advisory
- FEDORA-2021-d5b2c18fe6 vendor-advisory
- https://www.oracle.com/security-alerts/cpujan2021.html
- https://security.netapp.com/advisory/ntap-20210212-0003/
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
- [debian-lts-announce] 20221205 [SECURITY] [DLA 3224-1] http-parser security update mailing-list