Bug 2362651 (CVE-2025-4035) - CVE-2025-4035 libsoup: Cookie domain validation bypass via uppercase characters in libsoup
Summary: CVE-2025-4035 libsoup: Cookie domain validation bypass via uppercase characte...
Keywords:
Status: NEW
Alias: CVE-2025-4035
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: 2362656 2362657 2362658 2362659 2362660 2362661 2362662 2362663 2362664
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-04-28 06:27 UTC by OSIDB Bzimport
Modified: 2025-05-28 14:05 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2025:8128 0 None None None 2025-05-26 06:58:44 UTC

Description OSIDB Bzimport 2025-04-28 06:27:56 UTC 
When handling cookies, libsoup clients improperly validate domain names containing uppercase characters, allowing malicious websites to set cookies for public suffix domains and bypass expected isolation boundaries.
Comment 1 errata-xmlrpc 2025-05-26 06:58:43 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2025:8128 https://access.redhat.com/errata/RHSA-2025:8128
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