Upstream information

CVE-2026-42266 at MITRE

Description

jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 4.0.0 to 4.5.6, the allow-list of extensions that can be installed from PyPI Extension Manager (allowed_extensions_uris) is not correctly enforced by JupyterLab. The PyPI Extension Manager was not contained to packages listed on the default PyPI index. This vulnerability is fixed in 4.5.7.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v3 Scores
CVSS detail CNA (GitHub)
Base Score 8.8
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1265270 [NEW]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
openSUSE Tumbleweed
  • jupyter-jupyterlab >= 4.5.7-1.1
  • python311-jupyterlab >= 4.5.7-1.1
  • python313-jupyterlab >= 4.5.7-1.1
  • python314-jupyterlab >= 4.5.7-1.1
 Patchnames:
openSUSE-Tumbleweed-2026-10748

SUSE Timeline for this CVE

CVE page created: Tue May 12 13:44:09 2026
CVE page last modified: Thu May 14 15:32:11 2026