Bug 2431848 - CVE-2026-0865 python3.9: wsgiref.headers.Headers allows header newline injection in Python [fedora-43]
Summary: CVE-2026-0865 python3.9: wsgiref.headers.Headers allows header newline inject...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: python3.9
Version: 43
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Tomáš Hrnčiar
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["6e7fbe35-87b4-456a-ab91-8...
Depends On:
Blocks: CVE-2026-0865
TreeView+ depends on / blocked
 
Reported: 2026-01-21 20:30 UTC by Jon Moroney
Modified: 2026-02-28 01:07 UTC (History)
7 users (show)

Fixed In Version: python3.9-3.9.25-6.fc43
Clone Of:
Environment:
Last Closed: 2026-02-28 01:07:07 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Jon Moroney 2026-01-21 20:30:58 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 10:58:24 UTC
PR: https://src.fedoraproject.org/rpms/python3.9/pull-request/230

Comment 2 Fedora Update System 2026-02-19 08:21:28 UTC
FEDORA-2026-289d6d4f69 (python3.9-3.9.25-6.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-289d6d4f69

Comment 3 Fedora Update System 2026-02-20 01:40:16 UTC
FEDORA-2026-289d6d4f69 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-2026-289d6d4f69`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-289d6d4f69

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

Comment 4 Fedora Update System 2026-02-28 01:07:07 UTC
FEDORA-2026-289d6d4f69 (python3.9-3.9.25-6.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.


Note You need to log in before you can comment on or make changes to this bug.