CVE-2022-35948
undici is an HTTP/1.1 client, written from scratch for Node.js.`=< undici@5.8.0` users are vulnerable to _CRLF Injection_ on headers when using unsanitized input as request headers, more specifically, inside the `content-type` header.
Does this matter?
Lower severity and a low EPSS score (1.27%). Track it; it rarely justifies an emergency change on its own.
Description
undici is an HTTP/1.1 client, written from scratch for Node.js.`=< undici@5.8.0` users are vulnerable to _CRLF Injection_ on headers when using unsanitized input as request headers, more specifically, inside the `content-type` header. Example: ``` import { request } from 'undici' const unsanitizedContentTypeInput = 'application/json\r\n\r\nGET /foo2 HTTP/1.1' await request('http://localhost:3000, { method: 'GET', headers: { 'content-type': unsanitizedContentTypeInput }, }) ``` The above snippet will perform two requests in a single `request` API call: 1) `http://localhost:3000/` 2) `http://localhost:3000/foo2` This issue was patched in Undici v5.8.1. Sanitize input when sending content-type headers using user input as a workaround.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- EPSS
- 1.27% probability · 68th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-74, CWE-93
- Affected
- nodejs/undici
- Source
- security-advisories@github.com
References
- https://github.com/nodejs/undici/commit/66165d604fd0aee70a93ed5c44ad4cc2df395f80Patch, Third Party Advisory
- https://github.com/nodejs/undici/releases/tag/v5.8.2Release Notes, Third Party Advisory
- https://github.com/nodejs/undici/security/advisories/GHSA-f772-66g8-q5h3Exploit, Third Party Advisory
- https://github.com/nodejs/undici/commit/66165d604fd0aee70a93ed5c44ad4cc2df395f80Patch, Third Party Advisory
- https://github.com/nodejs/undici/releases/tag/v5.8.2Release Notes, Third Party Advisory
- https://github.com/nodejs/undici/security/advisories/GHSA-f772-66g8-q5h3Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.