CVE-2018-25091

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).

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.25%
Vendor Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/urllib3/urllib3/issues/1510 patch vendor advisory issue tracking
https://github.com/urllib3/urllib3/commit/adb358f8e06865406d1f05e581a16cbea2136fbc patch
https://github.com/urllib3/urllib3/compare/1.24.1...1.24.2 patch

Frequently Asked Questions

What is the severity of CVE-2018-25091?
CVE-2018-25091 has been scored as a medium severity vulnerability.
How to fix CVE-2018-25091?
To fix CVE-2018-25091, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-25091 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-25091 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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