DEBIAN-CVE-2026-42266

See a problem?
Please try reporting it to the source first.
Source
https://security-tracker.debian.org/tracker/CVE-2026-42266
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42266.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-42266
Upstream
Published
2026-05-13T16:16:47Z
Modified
2026-08-29T08:47:31Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Debian:13 / jupyterlab

Package

Name
jupyterlab
Purl
pkg:deb/debian/jupyterlab?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

4.*
4.0.11+ds1+~cs11.25.27-7
4.0.11+ds1+~cs11.25.27-8
4.0.11+ds1+~cs11.25.27-9
4.0.11+ds2+~cs11.25.27-1
4.0.11+ds2+~cs11.25.27-3
4.0.11+ds3+~cs11.25.27-1
4.0.11+ds4+~cs11.25.27-1
4.0.11+ds4+~cs11.25.27-2
4.0.11+ds4+~cs11.25.27-3
4.0.11+ds4+~cs11.25.27-4
4.0.11+ds5+~cs11.25.27-1
4.0.13+ds1+~2.0.1+~cs1.4.4-1
4.1.3+ds1+~2.0.1+~0.15.3+~cs1.4.4-1
4.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-1
4.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-2
4.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-3
4.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-4
4.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-5
4.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-6
4.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-7
4.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-8
4.4.1+ds1+~3.0.5+~0.16.6+~cs1.4.4-1
4.4.8+ds1+~3.1.0+~0.16.6+~cs1.4.4-1
4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-1
4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-2
4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-3
4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-4

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42266.json"

Debian:14 / jupyterlab

Package

Name
jupyterlab
Purl
pkg:deb/debian/jupyterlab?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-3

Affected versions

4.*
4.0.11+ds1+~cs11.25.27-7
4.0.11+ds1+~cs11.25.27-8
4.0.11+ds1+~cs11.25.27-9
4.0.11+ds2+~cs11.25.27-1
4.0.11+ds2+~cs11.25.27-3
4.0.11+ds3+~cs11.25.27-1
4.0.11+ds4+~cs11.25.27-1
4.0.11+ds4+~cs11.25.27-2
4.0.11+ds4+~cs11.25.27-3
4.0.11+ds4+~cs11.25.27-4
4.0.11+ds5+~cs11.25.27-1
4.0.13+ds1+~2.0.1+~cs1.4.4-1
4.1.3+ds1+~2.0.1+~0.15.3+~cs1.4.4-1
4.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-1
4.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-2
4.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-3
4.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-4
4.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-5
4.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-6
4.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-7
4.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-8
4.4.1+ds1+~3.0.5+~0.16.6+~cs1.4.4-1
4.4.8+ds1+~3.1.0+~0.16.6+~cs1.4.4-1
4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-1
4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-2

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42266.json"