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CVE-2018-25091

Medium

Description

urllib3 before 1.24.2 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. NOTE: this issue exists because of an incomplete fix for CVE-2018-20060 (which was case-sensitive).

SeverityMedium
CVSS6.1
Exploit probability—
ProductPython Urllib3
PublishedOct 15, 2023
First seenOct 15, 2023

How to fix

Update
  • python urllib31.24.2 or later
  • urllib31.24.2 or later

Affected products

ProductAffected versionsFixed in
python urllib3v < 1.24.21.24.2
urllib3PyPIv < 1.24.21.24.2

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