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).
Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| python-pip | — | 9.0.1-2.3~ubuntu1.18.04.8+esm2 |
| python-urllib3 | — | 1.22-1ubuntu0.18.04.2+esm1 |
References
Similar Threats
- Unknown DEBIAN-CVE-2026-8643
- Unknown ECHO-e120-768d-97d2
- Unknown ECHO-0a2a-4462-0b2a
- Unknown DEBIAN-CVE-2026-6357
- Unknown ECHO-e9f8-2dcb-3be1
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