CVE-2022-27779

2022-06-0100:00:00

CWE-201

hackerone

www.cve.org

6.7 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

34.4%

JSON

libcurl wrongly allows cookies to be set for Top Level Domains (TLDs) if thehost name is provided with a trailing dot.curl can be told to receive and send cookies. curl’s “cookie engine” can bebuilt with or without Public Suffix Listawareness. If PSL support not provided, a more rudimentary check exists to atleast prevent cookies from being set on TLDs. This check was broken if thehost name in the URL uses a trailing dot.This can allow arbitrary sites to set cookies that then would get sent to adifferent and unrelated site or domain.

CNA Affected

[
  {
    "vendor": "n/a",
    "product": "https://github.com/curl/curl",
    "versions": [
      {
        "version": "Fixed in 7.83.1",
        "status": "affected"
      }
    ]
  }
]