Bug 2431374 (CVE-2026-0672) - CVE-2026-0672 cpython: Header injection in http.cookies.Morsel in Python
Summary: CVE-2026-0672 cpython: Header injection in http.cookies.Morsel in Python
Keywords:
Status: NEW
Alias: CVE-2026-0672
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: 2431749 2431814 2431844 2431846 2431751 2431753 2431757 2431762 2431765 2431770 2431787 2431792 2431794 2431799 2431803 2431809 2431817 2431820 2431824 2431828 2431833 2431837 2431840
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-01-20 22:02 UTC by OSIDB Bzimport
Modified: 2026-05-19 17:59 UTC (History)
15 users (show)

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

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:10950 0 None None None 2026-04-27 14:54:25 UTC
Red Hat Product Errata RHSA-2026:19064 0 None None None 2026-05-19 13:07:30 UTC
Red Hat Product Errata RHSA-2026:19177 0 None None None 2026-05-19 17:59:26 UTC

Description OSIDB Bzimport 2026-01-20 22:02:40 UTC 
User-controlled cookie values and parameters can allow injecting HTTP headers. Fix rejects all control characters within cookie names, values, and parameters.
Comment 6 errata-xmlrpc 2026-04-27 14:54:23 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:10950 https://access.redhat.com/errata/RHSA-2026:10950
Comment 7 errata-xmlrpc 2026-05-19 13:07:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:19064 https://access.redhat.com/errata/RHSA-2026:19064
Comment 8 errata-xmlrpc 2026-05-19 17:59:25 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:19177 https://access.redhat.com/errata/RHSA-2026:19177
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