Authorization headers are cleared on cross-origin redirect. However, cookie headers which are sensitive headers and are official headers found in the spec, remain uncleared. There are active users using cookie headers in undici. This may lead to accidental leakage of cookie to a 3rd-party site or a malicious attacker who can control the redirection target (ie. an open redirector) to leak the cookie to the 3rd party site. This was patched in v5.7.1. By default, this vulnerability is not exploitable. Do not enable redirections, i.e. `maxRedirections: 0` (the default).
The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.
The product does not properly verify that the source of data or communication is valid.
| Link | Tags |
|---|---|
| https://github.com/nodejs/undici/security/advisories/GHSA-q768-x9m6-m9qp | third party advisory |
| https://github.com/nodejs/undici/issues/872 | issue tracking exploit third party advisory |
| https://hackerone.com/reports/1635514 | third party advisory permissions required |
| https://security.netapp.com/advisory/ntap-20220909-0006/ | third party advisory |