Bug 2452932 (CVE-2026-5119) - CVE-2026-5119 libsoup: libsoup: Information disclosure via cleartext transmission of cookies during HTTPS tunnel establishment
Summary: CVE-2026-5119 libsoup: libsoup: Information disclosure via cleartext transmis...
Keywords:
Status: NEW
Alias: CVE-2026-5119
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2452934 2452936 2452935
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-30 05:15 UTC by OSIDB Bzimport
Modified: 2026-06-03 09:25 UTC (History)
3 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-2026:14219 0 None None None 2026-05-06 16:34:21 UTC
Red Hat Product Errata RHSA-2026:13978 0 None None None 2026-05-06 11:42:49 UTC
Red Hat Product Errata RHSA-2026:14087 0 None None None 2026-05-06 12:42:33 UTC
Red Hat Product Errata RHSA-2026:15968 0 None None None 2026-05-11 21:32:34 UTC
Red Hat Product Errata RHSA-2026:17482 0 None None None 2026-05-14 09:11:39 UTC
Red Hat Product Errata RHSA-2026:19143 0 None None None 2026-05-19 16:08:46 UTC
Red Hat Product Errata RHSA-2026:19356 0 None None None 2026-05-19 21:40:03 UTC
Red Hat Product Errata RHSA-2026:21686 0 None None None 2026-05-28 07:03:59 UTC
Red Hat Product Errata RHSA-2026:22316 0 None None None 2026-06-01 12:44:42 UTC
Red Hat Product Errata RHSA-2026:22317 0 None None None 2026-06-01 13:25:18 UTC
Red Hat Product Errata RHSA-2026:22323 0 None None None 2026-06-01 15:02:50 UTC
Red Hat Product Errata RHSA-2026:22710 0 None None None 2026-06-03 07:06:43 UTC
Red Hat Product Errata RHSA-2026:22716 0 None None None 2026-06-03 09:25:08 UTC

Description OSIDB Bzimport 2026-03-30 05:15:51 UTC 
Cleartext Transmission of Sensitive Information has been reported in libsoup’s HTTP CONNECT handling. When establishing HTTPS tunnels via soup_session.c::tunnel_connect(), cookies (including potentially sensitive session cookies) are sent in cleartext within the initial HTTP CONNECT request to the configured proxy. A network-positioned attacker or malicious HTTP proxy can intercept or observe these cookies and leverage them for session hijacking or user impersonation.
Comment 1 errata-xmlrpc 2026-05-06 11:42:48 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:13978 https://access.redhat.com/errata/RHSA-2026:13978
Comment 2 errata-xmlrpc 2026-05-06 12:42:32 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:14087 https://access.redhat.com/errata/RHSA-2026:14087
Comment 3 errata-xmlrpc 2026-05-11 21:32:33 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:15968 https://access.redhat.com/errata/RHSA-2026:15968
Comment 4 errata-xmlrpc 2026-05-14 09:11:38 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:17482 https://access.redhat.com/errata/RHSA-2026:17482
Comment 5 errata-xmlrpc 2026-05-19 16:08:45 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:19143 https://access.redhat.com/errata/RHSA-2026:19143
Comment 6 errata-xmlrpc 2026-05-19 21:40:02 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:19356 https://access.redhat.com/errata/RHSA-2026:19356
Comment 7 errata-xmlrpc 2026-05-28 07:03:58 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2026:21686 https://access.redhat.com/errata/RHSA-2026:21686
Comment 8 errata-xmlrpc 2026-06-01 12:44:41 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:22316 https://access.redhat.com/errata/RHSA-2026:22316
Comment 9 errata-xmlrpc 2026-06-01 13:25:17 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:22317 https://access.redhat.com/errata/RHSA-2026:22317
Comment 10 errata-xmlrpc 2026-06-01 15:02:49 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:22323 https://access.redhat.com/errata/RHSA-2026:22323
Comment 11 errata-xmlrpc 2026-06-03 07:06:42 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2026:22710 https://access.redhat.com/errata/RHSA-2026:22710
Comment 12 errata-xmlrpc 2026-06-03 09:25:07 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Via RHSA-2026:22716 https://access.redhat.com/errata/RHSA-2026:22716
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