Bug 2454048 - CVE-2026-4800 python-jupyterlab-widgets: lodash: Arbitrary code execution via untrusted input in template imports [fedora-all]
Summary: CVE-2026-4800 python-jupyterlab-widgets: lodash: Arbitrary code execution via...
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Fedora
Classification: Fedora
Component: python-jupyterlab-widgets
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Lumír Balhar
QA Contact:
URL:
Whiteboard: {"flaws": ["9bea0361-156d-4476-b60c-e...
Depends On:
Blocks: CVE-2026-4800
TreeView+ depends on / blocked
 
Reported: 2026-04-01 20:24 UTC by Jon Moroney
Modified: 2026-06-14 15:05 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2026-06-14 15:05:25 UTC
Type: ---
Embargoed:

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Description Jon Moroney 2026-04-01 20:24:07 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 Lumír Balhar 2026-06-14 15:05:25 UTC 
jupyterlab_widgets bundles only lodash.isEqual (and its internal dependencies) via backbone.js. The _.template() function and all code paths leading to the vulnerable Function() constructor call are not compiled into the shipped static bundle. The templateSettings symbol present in the bundle belongs to underscore.js (backbone's dependency), not lodash.
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