Bug 2431366 (CVE-2025-15282) - CVE-2025-15282 cpython: Header injection via newlines in data URL mediatype in Python
Summary: CVE-2025-15282 cpython: Header injection via newlines in data URL mediatype i...
Keywords:
Status: NEW
Alias: CVE-2025-15282
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
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Depends On: 2431759 2431786 2431827 2431834 2431853 2431854 2431763 2431768 2431790 2431795 2431798 2431808 2431812 2431816 2431823 2431831 2431839 2431841 2431843 2431847 2431849 2431851 2431852
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-01-20 22:01 UTC by OSIDB Bzimport
Modified: 2026-04-27 14:54 UTC (History)
15 users (show)

Fixed In Version:
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Last Closed:
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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:10950 0 None None None 2026-04-27 14:54:24 UTC

Description OSIDB Bzimport 2026-01-20 22:01:46 UTC 
User-controlled data URLs parsed by urllib.request.DataHandler allow injecting headers through newlines in the data URL mediatype.
Comment 6 errata-xmlrpc 2026-04-27 14:54:22 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
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