CVE catalog

CVE-2026-73626

DEBIAN-CVE-2026-73626

[CVE catalog]

Severity
Low · CVSS 0CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:N
Published
Updated
Source
[NVD] · [CVE record]
EPSS
0.36% · Oct 25, 2026

JupyterLab versions >=4.6.0,<=4.6.1 and <=4.5.9 contain an allowlist/blocklist enforcement gap in PyPIExtensionManager.install(). A missing 'await' caused the is_install_allowed coroutine to never execute, so the extension allowlist/blocklist check was not enforced for direct callers of install(). The stock JupyterLab HTTP API and Extension Manager UI are not affected, as they perform a separate, correctly awaited check. The issue affects only deployments where a custom extension or downstream integration imports PyPIExtensionManager and calls install() directly with a package name influenced by untrusted input, an allowlist/blocklist is configured, the PyPI Extension Manager is enabled, and kernels and terminals are disabled or delegated to remote hosts. Fixed in JupyterLab 4.6.2 and 4.5.10.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debianjupyterlab134.0.11+ds1+~cs11.25.27-7vulnerable
Debianjupyterlab134.0.11+ds1+~cs11.25.27-8vulnerable
Debianjupyterlab134.0.11+ds1+~cs11.25.27-9vulnerable
Debianjupyterlab134.0.11+ds2+~cs11.25.27-1vulnerable
Debianjupyterlab134.0.11+ds2+~cs11.25.27-3vulnerable
Debianjupyterlab134.0.11+ds3+~cs11.25.27-1vulnerable
Debianjupyterlab134.0.11+ds4+~cs11.25.27-1vulnerable
Debianjupyterlab134.0.11+ds4+~cs11.25.27-2vulnerable
Debianjupyterlab134.0.11+ds4+~cs11.25.27-3vulnerable
Debianjupyterlab134.0.11+ds4+~cs11.25.27-4vulnerable
Debianjupyterlab134.0.11+ds5+~cs11.25.27-1vulnerable
Debianjupyterlab134.0.13+ds1+~2.0.1+~cs1.4.4-1vulnerable
Debianjupyterlab134.1.3+ds1+~2.0.1+~0.15.3+~cs1.4.4-1vulnerable
Debianjupyterlab134.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-1vulnerable
Debianjupyterlab134.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-2vulnerable
Debianjupyterlab134.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-3vulnerable
Debianjupyterlab134.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-4vulnerable
Debianjupyterlab134.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-5vulnerable
Debianjupyterlab134.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-6vulnerable
Debianjupyterlab134.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-7vulnerable
Debianjupyterlab134.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-8vulnerable
Debianjupyterlab134.4.1+ds1+~3.0.5+~0.16.6+~cs1.4.4-1vulnerable
Debianjupyterlab134.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-1vulnerable
Debianjupyterlab134.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-2vulnerable
Debianjupyterlab134.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-3vulnerable
Debianjupyterlab134.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-4vulnerable
Debianjupyterlab134.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-5vulnerable
Debianjupyterlab134.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-6vulnerable
Debianjupyterlab134.4.8+ds1+~3.1.0+~0.16.6+~cs1.4.4-1vulnerable
Debianjupyterlab144.0.11+ds1+~cs11.25.27-7vulnerable
Debianjupyterlab144.0.11+ds1+~cs11.25.27-8vulnerable
Debianjupyterlab144.0.11+ds1+~cs11.25.27-9vulnerable
Debianjupyterlab144.0.11+ds2+~cs11.25.27-1vulnerable
Debianjupyterlab144.0.11+ds2+~cs11.25.27-3vulnerable
Debianjupyterlab144.0.11+ds3+~cs11.25.27-1vulnerable
Debianjupyterlab144.0.11+ds4+~cs11.25.27-1vulnerable
Debianjupyterlab144.0.11+ds4+~cs11.25.27-2vulnerable
Debianjupyterlab144.0.11+ds4+~cs11.25.27-3vulnerable
Debianjupyterlab144.0.11+ds4+~cs11.25.27-4vulnerable
Debianjupyterlab144.0.11+ds5+~cs11.25.27-1vulnerable
Debianjupyterlab144.0.13+ds1+~2.0.1+~cs1.4.4-1vulnerable
Debianjupyterlab144.1.3+ds1+~2.0.1+~0.15.3+~cs1.4.4-1vulnerable
Debianjupyterlab144.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-1vulnerable
Debianjupyterlab144.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-2vulnerable
Debianjupyterlab144.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-3vulnerable
Debianjupyterlab144.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-4vulnerable
Debianjupyterlab144.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-5vulnerable
Debianjupyterlab144.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-6vulnerable
Debianjupyterlab144.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-7vulnerable
Debianjupyterlab144.1.8+ds1+~2.0.1+~0.15.3+~cs1.4.4-8vulnerable
Debianjupyterlab144.4.1+ds1+~3.0.5+~0.16.6+~cs1.4.4-1vulnerable
Debianjupyterlab144.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-1vulnerable
Debianjupyterlab144.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-2vulnerable
Debianjupyterlab144.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-3vulnerable
Debianjupyterlab144.4.8+ds1+~3.1.0+~0.16.6+~cs1.4.4-1vulnerable
Debianjupyterlab144.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-4fixed

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debianjupyterlabdeb144.4.10+ds1+~3.1.0+~0.16.6+~cs1.4.4-4Not reportedDEBIAN-CVE-2026-73626Not reported

OpenFactory catalog packages

[Debian 13 (Trixie)]

  • [jupyterlab]Affected
    Details (2)

    • 4.0.11+ds1+~cs11.25.27-7 · all · trixie

      Affected

      pypi · jupyterlab · debian · 13

    • 4.0.11+ds1+~cs11.25.27-7 · all · trixie

      Affected

      pypi · jupyterlab · debian · 13

Observed:

References

[FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]