Bug 2485374 - CVE-2026-6657 python-jupyter-server: jupyter-server: Arbitrary code execution due to CORS origin validation bypass [fedora-all]
Summary: CVE-2026-6657 python-jupyter-server: jupyter-server: Arbitrary code execution...
Keywords:
Status: ON_QA
Alias: None
Product: Fedora
Classification: Fedora
Component: python-jupyter-server
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Lumír Balhar
QA Contact:
URL:
Whiteboard: {"flaws": ["2b64cadc-8061-4108-89d8-0...
Depends On:
Blocks: CVE-2026-6657
TreeView+ depends on / blocked
 
Reported: 2026-06-05 06:42 UTC by Avinash Hanwate
Modified: 2026-06-19 19:00 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:

Attachments (Terms of Use)

Description Avinash Hanwate 2026-06-05 06:42:58 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 2026-06-17 10:33:04 UTC 
FEDORA-2026-458669c813 (python-jupyter-server-2.19.0-2.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-458669c813
Comment 2 Fedora Update System 2026-06-17 10:33:10 UTC 
FEDORA-2026-9536c7cb79 (python-jupyter-server-2.19.0-2.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-9536c7cb79
Comment 3 Fedora Update System 2026-06-19 01:39:33 UTC 
FEDORA-2026-9536c7cb79 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-2026-9536c7cb79`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-9536c7cb79

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 4 Fedora Update System 2026-06-19 19:00:31 UTC 
FEDORA-2026-458669c813 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-2026-458669c813`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-458669c813

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