Bug 2477167 (CVE-2026-44431) - CVE-2026-44431 urllib3: urllib3: Information disclosure via cross-origin redirects forwarding sensitive headers
Summary: CVE-2026-44431 urllib3: urllib3: Information disclosure via cross-origin redi...
Keywords:
Status: NEW
Alias: CVE-2026-44431
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-13 17:02 UTC by OSIDB Bzimport
Modified: 2026-07-13 12:56 UTC (History)
138 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2026:28285 0 None None None 2026-06-23 16:58:38 UTC
Red Hat Product Errata RHSA-2026:27929 0 None None None 2026-06-22 14:40:30 UTC
Red Hat Product Errata RHSA-2026:28000 0 None None None 2026-06-22 15:52:55 UTC
Red Hat Product Errata RHSA-2026:28157 0 None None None 2026-06-23 10:43:15 UTC
Red Hat Product Errata RHSA-2026:28158 0 None None None 2026-06-23 10:17:29 UTC
Red Hat Product Errata RHSA-2026:28159 0 None None None 2026-06-23 10:39:13 UTC
Red Hat Product Errata RHSA-2026:32992 0 None None None 2026-06-29 12:24:34 UTC
Red Hat Product Errata RHSA-2026:34160 0 None None None 2026-07-01 11:03:25 UTC
Red Hat Product Errata RHSA-2026:36732 0 None None None 2026-07-08 14:06:54 UTC

Description OSIDB Bzimport 2026-05-13 17:02:04 UTC 
urllib3 is an HTTP client library for Python. From 1.23 to before 2.7.0, cross-origin redirects followed from the low-level API via ProxyManager.connection_from_url().urlopen(..., assert_same_host=False) still forward these sensitive headers. This vulnerability is fixed in 2.7.0.
Comment 4 errata-xmlrpc 2026-06-22 14:40:22 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:27929 https://access.redhat.com/errata/RHSA-2026:27929
Comment 5 errata-xmlrpc 2026-06-22 15:52:46 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:28000 https://access.redhat.com/errata/RHSA-2026:28000
Comment 6 errata-xmlrpc 2026-06-23 10:17:22 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:28158 https://access.redhat.com/errata/RHSA-2026:28158
Comment 7 errata-xmlrpc 2026-06-23 10:39:04 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:28159 https://access.redhat.com/errata/RHSA-2026:28159
Comment 8 errata-xmlrpc 2026-06-23 10:43:07 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:28157 https://access.redhat.com/errata/RHSA-2026:28157
Comment 9 errata-xmlrpc 2026-06-29 12:24:25 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:32992 https://access.redhat.com/errata/RHSA-2026:32992
Comment 10 errata-xmlrpc 2026-07-01 11:03:17 UTC 
This issue has been addressed in the following products:

  Red Hat Ansible Automation Platform 2.6 for RHEL 9

Via RHSA-2026:34160 https://access.redhat.com/errata/RHSA-2026:34160
Comment 11 errata-xmlrpc 2026-07-08 14:06:47 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:36732 https://access.redhat.com/errata/RHSA-2026:36732
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