CVE-2023-23936
CRLF Injection in Nodejs ‘undici’ via host
CVE-2023-23936 is fixed in 13 products on 2 platforms, first by Node.js 16 16.19.1, released February 16, 2023. It is not reported as exploited. Patch Radar priority: High.
HighFixed on 2 platforms
CVSS
8.6
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0113
66th percentile
Undici is an HTTP/1.1 client for Node.js. Starting with version 2.0.0 and prior to version 5.19.1, the undici library does not protect `host` HTTP header from CRLF injection vulnerabilities. This issue is patched in Undici v5.19.1. As a workaround, sanitize the `headers.host` string before passing to undici.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| Node.js 16 | 16.19.1 | Node.js 16 16.19.1 | Feb 16, 2023 |
| Node.js 18 | 18.14.1 | Node.js 18 18.14.1 | Feb 16, 2023 |
| Node.js 19 | 19.6.1 | Node.js 19 19.6.1 | Feb 16, 2023 |
| Linux | |||
| node-undici · Debian 12.15 (bookworm) | 5.15.0+dfsg1+~cs20.10.9.3-1+deb12u1 | DEBIAN-CVE-2023-23936 | Feb 16, 2023 |
| node-undici · Debian 13.5 (trixie) | 5.19.1+dfsg1+~cs20.10.9.5-1 | DEBIAN-CVE-2023-23936 | Feb 16, 2023 |
| node-undici · Debian 14 | 5.19.1+dfsg1+~cs20.10.9.5-1 | DEBIAN-CVE-2023-23936 | Feb 16, 2023 |
| nodejs · RHEL 8 | 1:18.14.2-2.module+el8.7.0+18445+9493b6ea | RHSA-2023:1583 | Apr 4, 2023 |
| nodejs · RHEL 9 | 1:16.19.1-1.el9_2 | RHSA-2023:2655 | May 9, 2023 |
| nodejs · almalinux 8 | 1:18.14.2-2.module_el8.7.0+3497+c65299e7 | ALSA-2023:1583 | Apr 4, 2023 |
| nodejs · almalinux 9 | 1:16.19.1-1.el9_2 | ALSA-2023:2655 | May 9, 2023 |
| nodejs · ol 8 | 1:18.14.2-2.module+el8.7.0+21020+b7aeeb08 | ELSA-2023-1583 | Apr 5, 2023 |
| nodejs · ol 9 | 1:18.14.2-2.module+el9.2.0+21038+115df6a2 | ELSA-2023-2654 | May 17, 2023 |
| nodejs · rocky 8 | 1:18.14.2-2.module+el8.7.0+1177+510ae886 | RLSA-2023:1583 | Apr 6, 2023 |
| nodejs · rocky 9 | 1:16.19.1-1.el9_2 | RLSA-2023:2655 | May 25, 2023 |
| nodejs-devel · RHEL 8 | 1:18.14.2-2.module+el8.7.0+18445+9493b6ea | RHSA-2023:1583 | Apr 4, 2023 |
| nodejs-devel · RHEL 9 | 1:18.14.2-2.module+el9.2.0.z+18497+a402347c | RHSA-2023:2654 | May 9, 2023 |
| nodejs-devel · almalinux 8 | 1:18.14.2-2.module_el8.7.0+3497+c65299e7 | ALSA-2023:1583 | Apr 4, 2023 |
| nodejs-devel · almalinux 9 | 1:18.14.2-2.module_el9.2.0+29+de583a0b | ALSA-2023:2654 | May 9, 2023 |
| nodejs-devel · ol 8 | 1:18.14.2-2.module+el8.7.0+21020+b7aeeb08 | ELSA-2023-1583 | Apr 5, 2023 |
| nodejs-devel · ol 9 | 1:18.14.2-2.module+el9.2.0+21038+115df6a2 | ELSA-2023-2654 | May 17, 2023 |
| nodejs-docs · RHEL 8 | 1:18.14.2-2.module+el8.7.0+18445+9493b6ea | RHSA-2023:1583 | Apr 4, 2023 |
| nodejs-docs · RHEL 9 | 1:16.19.1-1.el9_2 | RHSA-2023:2655 | May 9, 2023 |
| nodejs-docs · almalinux 8 | 1:18.14.2-2.module_el8.7.0+3497+c65299e7 | ALSA-2023:1583 | Apr 4, 2023 |
| nodejs-docs · almalinux 9 | 1:16.19.1-1.el9_2 | ALSA-2023:2655 | May 9, 2023 |
| nodejs-docs · ol 8 | 1:18.14.2-2.module+el8.7.0+21020+b7aeeb08 | ELSA-2023-1583 | Apr 5, 2023 |
| nodejs-docs · ol 9 | 1:18.14.2-2.module+el9.2.0+21038+115df6a2 | ELSA-2023-2654 | May 17, 2023 |
| nodejs-full-i18n · RHEL 8 | 1:18.14.2-2.module+el8.7.0+18445+9493b6ea | RHSA-2023:1583 | Apr 4, 2023 |
| nodejs-full-i18n · RHEL 9 | 1:16.19.1-1.el9_2 | RHSA-2023:2655 | May 9, 2023 |
| nodejs-full-i18n · almalinux 8 | 1:18.14.2-2.module_el8.7.0+3497+c65299e7 | ALSA-2023:1583 | Apr 4, 2023 |
| nodejs-full-i18n · almalinux 9 | 1:16.19.1-1.el9_2 | ALSA-2023:2655 | May 9, 2023 |
| nodejs-full-i18n · ol 8 | 1:18.14.2-2.module+el8.7.0+21020+b7aeeb08 | ELSA-2023-1583 | Apr 5, 2023 |
| nodejs-full-i18n · ol 9 | 1:18.14.2-2.module+el9.2.0+21038+115df6a2 | ELSA-2023-2654 | May 17, 2023 |
| nodejs-libs · RHEL 9 | 1:16.19.1-1.el9_2 | RHSA-2023:2655 | May 9, 2023 |
| nodejs-libs · almalinux 9 | 1:16.19.1-1.el9_2 | ALSA-2023:2655 | May 9, 2023 |
| nodejs-libs · ol 9 | 1:16.19.1-1.el9_2 | ELSA-2023-2655 | May 17, 2023 |
| nodejs-nodemon · RHEL 8 | 0:2.0.20-2.module+el8.7.0+18445+9493b6ea | RHSA-2023:1583 | Apr 4, 2023 |
| nodejs-nodemon · RHEL 9 | 0:2.0.20-3.el9_2 | RHSA-2023:2655 | May 9, 2023 |
| nodejs-nodemon · almalinux 8 | 2.0.20-2.module_el8.7.0+3497+c65299e7 | ALSA-2023:1583 | Apr 4, 2023 |
| nodejs-nodemon · almalinux 9 | 2.0.20-2.module_el9.2.0+29+de583a0b | ALSA-2023:2654 | May 9, 2023 |
| nodejs-nodemon · ol 8 | 0:2.0.20-2.module+el8.7.0+21020+b7aeeb08 | ELSA-2023-1583 | Apr 5, 2023 |
| nodejs-nodemon · ol 9 | 0:2.0.20-2.module+el9.2.0+21038+115df6a2 | ELSA-2023-2654 | May 17, 2023 |
| nodejs-nodemon · rocky 8 | 0:2.0.20-2.module+el8.7.0+1108+49363b0d | RLSA-2023:1583 | Apr 6, 2023 |
| nodejs-nodemon · rocky 9 | 0:2.0.20-3.el9_2 | RLSA-2023:2655 | May 25, 2023 |
| nodejs-packaging · RHEL 8 | 0:2021.06-4.module+el8.7.0+15582+19c314fa | RHSA-2023:1583 | Apr 4, 2023 |
| nodejs-packaging · RHEL 9 | 0:2021.06-4.module+el9.1.0+15718+e52ec601 | RHSA-2023:2654 | May 9, 2023 |
| nodejs-packaging · almalinux 8 | 2021.06-4.module_el8.7.0+3343+ea2b7901 | ALSA-2023:1583 | Apr 4, 2023 |
| nodejs-packaging · almalinux 9 | 2021.06-4.module_el9.1.0+13+d9a595ea | ALSA-2023:2654 | May 9, 2023 |
| nodejs-packaging · ol 8 | 0:2021.06-4.module+el8.7.0+20766+0a247725 | ELSA-2023-1583 | Apr 5, 2023 |
| nodejs-packaging · ol 9 | 0:2021.06-4.module+el9.1.0+20762+f52d7401 | ELSA-2023-2654 | May 17, 2023 |
| nodejs-packaging · rocky 8 | 0:2021.06-4.module+el8.7.0+1072+5b168780 | RLSA-2023:1583 | Apr 6, 2023 |
| nodejs-packaging · rocky 9 | 0:2021.06-4.module+el9.7.0+40025+0e0cf6b2 | RLSA-2023:2654 | Dec 3, 2025 |
| nodejs-packaging-bundler · RHEL 8 | 0:2021.06-4.module+el8.7.0+15582+19c314fa | RHSA-2023:1583 | Apr 4, 2023 |
| nodejs-packaging-bundler · RHEL 9 | 0:2021.06-4.module+el9.1.0+15718+e52ec601 | RHSA-2023:2654 | May 9, 2023 |
| nodejs-packaging-bundler · almalinux 8 | 2021.06-4.module_el8.7.0+3343+ea2b7901 | ALSA-2023:1583 | Apr 4, 2023 |
| nodejs-packaging-bundler · almalinux 9 | 2021.06-4.module_el9.1.0+13+d9a595ea | ALSA-2023:2654 | May 9, 2023 |
| nodejs-packaging-bundler · ol 8 | 0:2021.06-4.module+el8.7.0+20766+0a247725 | ELSA-2023-1583 | Apr 5, 2023 |
| nodejs-packaging-bundler · ol 9 | 0:2021.06-4.module+el9.1.0+20762+f52d7401 | ELSA-2023-2654 | May 17, 2023 |
| npm · RHEL 8 | 1:9.5.0-1.18.14.2.2.module+el8.7.0+18445+9493b6ea | RHSA-2023:1583 | Apr 4, 2023 |
| npm · RHEL 9 | 1:8.19.3-1.16.19.1.1.el9_2 | RHSA-2023:2655 | May 9, 2023 |
| npm · almalinux 8 | 1:9.5.0-1.18.14.2.2.module_el8.7.0+3497+c65299e7 | ALSA-2023:1583 | Apr 4, 2023 |
| npm · almalinux 9 | 1:8.19.3-1.16.19.1.1.el9_2 | ALSA-2023:2655 | May 9, 2023 |
| npm · ol 8 | 1:9.5.0-1.18.14.2.2.module+el8.7.0+21020+b7aeeb08 | ELSA-2023-1583 | Apr 5, 2023 |
| npm · ol 9 | 1:9.5.0-1.18.14.2.2.module+el9.2.0+21038+115df6a2 | ELSA-2023-2654 | May 17, 2023 |
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