Bug 2431830 - CVE-2026-0865 python3.12: wsgiref.headers.Headers allows header newline injection in Python [fedora-43]
Summary: CVE-2026-0865 python3.12: wsgiref.headers.Headers allows header newline injec...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: python3.12
Version: 43
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Tomáš Hrnčiar
QA Contact:
URL:
Whiteboard: {"flaws": ["6e7fbe35-87b4-456a-ab91-8...
Depends On:
Blocks: CVE-2026-0865
TreeView+ depends on / blocked
 
Reported: 2026-01-21 20:29 UTC by Jon Moroney
Modified: 2026-03-02 00:42 UTC (History)
6 users (show)

Fixed In Version: python3.12-3.12.12-4.fc43
Clone Of:
Environment:
Last Closed: 2026-03-02 00:42:30 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Jon Moroney 2026-01-21 20:29:22 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Comment 1 Tomáš Hrnčiar 2026-02-10 10:55:58 UTC
PR: https://src.fedoraproject.org/rpms/python3.12/pull-request/209

Comment 2 Fedora Update System 2026-02-26 07:39:13 UTC
FEDORA-2026-4e99b7fe5f (python3.12-3.12.12-4.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-4e99b7fe5f

Comment 3 Fedora Update System 2026-02-27 02:00:17 UTC
FEDORA-2026-4e99b7fe5f has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-4e99b7fe5f`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-4e99b7fe5f

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 4 Fedora Update System 2026-03-02 00:42:30 UTC
FEDORA-2026-4e99b7fe5f (python3.12-3.12.12-4.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.


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