urijs
before version 1.19.6 is affected by hostname spoofing issue.
If using urijs
to determine a URL’s hostname, the hostname can be spoofed by using a backslash (\
) character as part of the scheme delimiter, e.g. scheme:/\hostname
. If the hostname is used in security decisions, the decision may be incorrect.
Depending on library usage and attacker intent, impacts may include allow/block list bypasses, SSRF attacks, open redirects, or other undesired behavior.
Example URL: https:/\expected-example.com/path
Escaped string: https:/\\expected-example.com/path
(JavaScript strings must escape backslash)
Affected versions incorrectly return no hostname. Patched versions correctly return expected-example.com
. Patched versions match the behavior of other parsers which implement the WHATWG URL specification, including web browsers and Node’s built-in URL class.
Upgrade to version 1.19.6