urllib3 before version 1.23 does not remove the Authorization HTTP header when following a cross-origin redirect (i.e., a redirect that differs in host, port, or scheme). This can allow for credentials in the Authorization header to be exposed to unintended hosts or transmitted in cleartext.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| urllib3(PyPI) | 0 | 1.23 | N/A |
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