CVE-2018-20060

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.

Score

CVSS 3.0 9.8 Critical

Status

Modified - cve@mitre.org

Published

2018-12-11

Last modified

2024-12-27

Affected products

• Fedora (Fedoraproject)
• Urllib3 (Python)

References

• http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00039.html
• https://access.redhat.com/errata/RHSA-2019:2272
• https://bugzilla.redhat.com/show_bug.cgi?id=1649153
• https://github.com/urllib3/urllib3/blob/master/CHANGES.rst
• https://github.com/urllib3/urllib3/issues/1316
• https://github.com/urllib3/urllib3/pull/1346
• https://lists.debian.org/debian-lts-announce/2021/06/msg00015.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5SJERZEJDSUYQP7BNBXMBH…
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BXLAXHM3Z6DUCXZ7ZXZ2EA…
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWP36YW3KSVLXDBY3QJKDY…
• https://usn.ubuntu.com/3990-1/
• https://security.netapp.com/advisory/ntap-20241227-0010/