Bug 2447328 - CVE-2026-28356 python-multipart: denial of service via maliciously crafted HTTP or multipart segment headers [fedora-43]
Summary: CVE-2026-28356 python-multipart: denial of service via maliciously crafted HT...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: python-multipart
Version: 43
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Carl George 🎩
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["08168a89-a034-414a-bc8f-6...
Depends On:
Blocks: CVE-2026-28356
TreeView+ depends on / blocked
 
Reported: 2026-03-13 14:12 UTC by Guilherme de Almeida Suckevicz
Modified: 2026-03-25 01:39 UTC (History)
2 users (show)

Fixed In Version: python-multipart-1.3.1-1.fc43
Clone Of:
Environment:
Last Closed: 2026-03-25 01:39:36 UTC
Type: ---
Embargoed:
fedora-admin-xmlrpc: mirror+

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System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker FC-3343 0 None None None 2026-03-13 14:14:00 UTC

Description Guilherme de Almeida Suckevicz 2026-03-13 14:12:22 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 Carl George 🎩 2026-03-16 22:51:58 UTC 
This only affects f43, not f44 or rawhide.
Comment 2 Fedora Update System 2026-03-16 23:18:16 UTC 
FEDORA-2026-5c75eb75d1 (python-multipart-1.3.1-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-5c75eb75d1
Comment 3 Fedora Update System 2026-03-17 03:08:47 UTC 
FEDORA-2026-5c75eb75d1 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-2026-5c75eb75d1`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-5c75eb75d1

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 4 Guilherme de Almeida Suckevicz 2026-03-20 14:59:12 UTC 
Hi @carl, please do not update the summary of this tracker bug. It's used to link this BZ to the CVE-2026-28356.

Thanks.
Comment 5 Fedora Update System 2026-03-25 01:39:36 UTC 
FEDORA-2026-5c75eb75d1 (python-multipart-1.3.1-1.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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