Bug 2458219 - CVE-2026-4786 mingw-python3: Python: Arbitrary code execution via command injection in webbrowser.open() API [fedora-all]
Summary: CVE-2026-4786 mingw-python3: Python: Arbitrary code execution via command inj...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: mingw-python3
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Sandro Mani
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["f6118815-adda-4e9e-881a-9...
Depends On:
Blocks: CVE-2026-4786
TreeView+ depends on / blocked
 
Reported: 2026-04-14 15:48 UTC by Marco Benatto
Modified: 2026-04-28 01:33 UTC (History)
1 user (show)

Fixed In Version: mingw-python3-3.11.15-4.fc43 mingw-python3-3.11.15-4.fc42 mingw-python3-3.11.15-4.fc44
Clone Of:
Environment:
Last Closed: 2026-04-28 00:58:34 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)

Description Marco Benatto 2026-04-14 15:48:58 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 Fedora Update System 2026-04-18 08:16:21 UTC 
FEDORA-2026-f04915ebfd (mingw-python3-3.11.15-4.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-f04915ebfd
Comment 2 Fedora Update System 2026-04-18 08:16:21 UTC 
FEDORA-2026-43577dc43b (mingw-python3-3.11.15-4.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-43577dc43b
Comment 3 Fedora Update System 2026-04-19 00:53:27 UTC 
FEDORA-2026-f04915ebfd has been pushed to the Fedora 44 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-f04915ebfd`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-f04915ebfd

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 4 Fedora Update System 2026-04-19 01:44:08 UTC 
FEDORA-2026-43577dc43b 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-2026-43577dc43b`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-43577dc43b

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 5 Fedora Update System 2026-04-19 02:02:39 UTC 
FEDORA-2026-763e814afa has been pushed to the Fedora 42 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-763e814afa`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-763e814afa

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 6 Fedora Update System 2026-04-28 00:58:34 UTC 
FEDORA-2026-43577dc43b (mingw-python3-3.11.15-4.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.
Comment 7 Fedora Update System 2026-04-28 01:13:59 UTC 
FEDORA-2026-763e814afa (mingw-python3-3.11.15-4.fc42) has been pushed to the Fedora 42 stable repository.
If problem still persists, please make note of it in this bug report.
Comment 8 Fedora Update System 2026-04-28 01:33:00 UTC 
FEDORA-2026-f04915ebfd (mingw-python3-3.11.15-4.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.
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