CVE-2022-35949: medium-severity vulnerability in nodejs undici
`undici.request` vulnerable to SSRF using absolute URL on `pathname`
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 1.9%
undici is an HTTP/1.1 client, written from scratch for Node.js.`undici` is vulnerable to SSRF (Server-side Request Forgery) when an application takes in **user input** into the `path/pathname` option of `undici.request`. If a user specifies a URL such as `http://127.0.0.1` or `//127.0.0.1` ```js const undici = require("undici") undici.request({origin: "http://example.com", pathname: "//127.0.0.1"}) ``` Instead of processing the request as `http://example.org//127.0.0.1` (or `http://example.org/http://127.0.0.1` when `http://127.0.0.1 is used`), it actually processes the request as `http://127.0.0.1/` and sends it to `http://127.0.0.1`. If a developer passes in user input into `path` parameter of `undici.request`, it can result in an _SSRF_ as they will assume that the hostname cannot change, when in actual fact it can change because the specified path parameter is combined with the base URL. This issue was fixed in `undici@5.8.1`. The best workaround is to validate user input before passing it to the `undici.request` call.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected products
nodejs · undiciRelated CVEs — nodejs undici
In the same product, most dangerous first.
CVE-2022-31150MEDIUMCRLF injection in request headersEPSS 1.5%CVE-2022-35948MEDIUMCRLF Injection in Nodejs ‘undici’ via Content-TypeEPSS 1.4%CVE-2023-45143LOWUndici's cookie header not cleared on cross-origin redirect in fetchEPSS 1.4%CVE-2023-24807HIGHUndici vulnerable to Regular Expression Denial of Service in HeadersEPSS 1.3%CVE-2023-23936MEDIUMCRLF Injection in Nodejs ‘undici’ via hostEPSS 1.1%CVE-2024-30261LOWUndici's fetch with integrity option is too lax when algorithm is specified but hash value is in incorrectEPSS 0.8%