CVEvulnerability

CVE-2018-20060

9.8 CRITICAL Published 2018-12-11 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2018-12-11
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
9.8 CRITICAL — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N

Description

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.

Affected configurations

• python urllib3 (< 1.23) • fedoraproject fedora 28 • fedoraproject fedora 29 • fedoraproject fedora 30

References