DEBIAN-CVE-2026-102830

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Source
https://security-tracker.debian.org/tracker/CVE-2026-102830
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-102830.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-102830
Upstream
Published
2026-09-29T19:17:25Z
Modified
2026-09-30T08:00:08Z
Severity
  • 6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N CVSS Calculator
Summary
[none]
Details

JupyterLab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From JupyterLab 3.0.0 until 4.5.11 and 4.6.4, and in JupyterLite Core 0.8.3 and earlier, the Plural-Forms header in a selected third-party language pack can append JavaScript after a valid plural rule because prefix-only regular-expression validation accepts a matching prefix without requiring the entire header to match. JupyterLab passes the accepted expression to new Function, so loading the catalogue and translating a plural string executes the appended code in the authenticated JupyterLab origin. Where Jupyter Server kernels, terminals, and APIs are exposed, the code can use authenticated server APIs to read or modify files and run code. Impact is much more limited in JupyterLite because it typically lacks most exposed Jupyter Server surfaces. The default English locale is unaffected because it does not load a translation catalogue. This issue is fixed in JupyterLab 4.5.11 and 4.6.4 and JupyterLite Core 0.8.4.

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
4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-5
4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-6

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-102830.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

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
4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-5
4.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-6

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-102830.json"