Bug 2433814

Summary: CVE-2026-1299 mingw-python3: email header injection due to unquoted newlines [fedora-42]
Product: [Fedora] Fedora Reporter: Guilherme de Almeida Suckevicz <gsuckevi>
Component: mingw-python3Assignee: Sandro Mani <manisandro>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 42CC: manisandro
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["48870374-6f50-4713-90f2-84e5d5758b4a"]}
Fixed In Version: mingw-python3-3.11.14-7.fc42 mingw-python3-3.11.14-7.fc43 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-02-18 00:56:03 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2432437    

Description Guilherme de Almeida Suckevicz 2026-01-28 13:51:33 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 2026-02-09 19:01:30 UTC
FEDORA-2026-c8b3418f91 (mingw-python3-3.11.14-7.fc42) has been submitted as an update to Fedora 42.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-c8b3418f91

Comment 2 Fedora Update System 2026-02-10 00:53:29 UTC
FEDORA-2026-c8b3418f91 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-c8b3418f91`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-c8b3418f91

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

Comment 3 Fedora Update System 2026-02-10 01:51:00 UTC
FEDORA-2026-e0c0434efb 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-e0c0434efb`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-e0c0434efb

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

Comment 4 Fedora Update System 2026-02-18 00:56:03 UTC
FEDORA-2026-c8b3418f91 (mingw-python3-3.11.14-7.fc42) has been pushed to the Fedora 42 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 5 Fedora Update System 2026-02-18 04:25:17 UTC
FEDORA-2026-e0c0434efb (mingw-python3-3.11.14-7.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.