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.
Weakness
The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Node.js | Nodejs | 16.0.0 (including) | 16.19.1 (excluding) |
| Node.js | Nodejs | 18.0.0 (including) | 18.14.1 (excluding) |
| Node.js | Nodejs | 19.0.0 (including) | 19.6.1 (excluding) |
| Undici | Nodejs | 2.0.0 (including) | 5.19.1 (excluding) |
| Red Hat Enterprise Linux 8 | RedHat | nodejs:16-8070020230314140722.bd1311ed | * |
| Red Hat Enterprise Linux 8 | RedHat | nodejs:18-8070020230322080930.bd1311ed | * |
| Red Hat Enterprise Linux 9 | RedHat | nodejs:18-9020020230327152102.rhel9 | * |
| Red Hat Enterprise Linux 9 | RedHat | nodejs-1:16.19.1-1.el9_2 | * |
| Red Hat Enterprise Linux 9.0 Extended Update Support | RedHat | nodejs-1:16.20.2-1.el9_0 | * |
| Node-undici | Ubuntu | kinetic | * |
| Node-undici | Ubuntu | lunar | * |
| Node-undici | Ubuntu | trusty | * |
| Node-undici | Ubuntu | upstream | * |
| Node-undici | Ubuntu | xenial | * |
Potential Mitigations
Related Attack Patterns
References
- https://github.com/nodejs/undici/commit/a2eff05401358f6595138df963837c24348f2034
- https://github.com/nodejs/undici/releases/tag/v5.19.1
- https://github.com/nodejs/undici/security/advisories/GHSA-5r9g-qh6m-jxff
- https://hackerone.com/reports/1820955
- https://github.com/nodejs/undici/commit/a2eff05401358f6595138df963837c24348f2034
- https://github.com/nodejs/undici/releases/tag/v5.19.1
- https://github.com/nodejs/undici/security/advisories/GHSA-5r9g-qh6m-jxff
- https://hackerone.com/reports/1820955