Creating this on behalf of a customer who has asked for an assessment of the following:
>> This flaw allows a malicious HTTP server to set "super cookies" in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains. It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with `domain=co.UK` when the URL used a lower case hostname `curl.co.uk`, even though `co.uk` is listed as a PSL domain.
https://nvd.nist.gov/vuln/detail/CVE-2023-46218
Reviewing the Curl website, this issue is present in versions up to (and including) 8.4 and has been fixed in 8.5:
https://curl.se/docs/CVE-2023-46218.html
Please assign to WebRequest team
Note: No CQA testing was carried out.