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TI-2026-32159 Aliases CVE-2026-44180GHSA-chq7-94j8-cj28

Jupyter Enterprise Gateway: ContainerProcessProxy._enforce_prohibited_ids can be Bypassed

Priority HIGH 82CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

Jupyter Enterprise Gateway launches remote Jupyter Notebook kernels across distributed clusters like Apache Spark, Kubernetes, and Docker Swarm. Versions 2.0.0rc1 and above prior to 3.3.0 have a prohibited UID and GID feature that by default prevents launching kernels with UID or GID 0 (root), and this restriction can be bypassed using a specially crafted KERNEL_UID or KERNEL_GID value. This input validation vulnerability allows running Jupyter kernels as root, which can be dangerous as it allows more attack surface, and may lead to container escapes, compromising the worker node and all workloads running on it. Repeated exploitation can compromise all worker nodes, and thus the entire Kubernetes cluster. It is possible to specify volume mounts, so one vector for a container escape is to use a hostPath R/W volume mount, use this UID/GID bypass to run as root, and then gain code execution in the underlying worker node by creating a crontab entry in the mounted host file system. This issue has been fixed in version 3.0.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00715 53rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed enterprise_gateway (jupyter-server): 3.3.0jupyter_enterprise_gateway (PyPI): 3.3.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
jupyterlabenterprise_gateway2.0.0rc1 to before 3.3.03.3.0Patch availableCNA
—jupyter_enterprise_gateway (PyPI)2.0.0rc1 to before 3.3.03.3.0Patch availableGHSA-chq7-94j8-cj28
  • enterprise_gateway Vendorjupyterlab Affected 2.0.0rc1 to before 3.3.0 Fixed in 3.3.0 Patch available CNA
  • jupyter_enterprise_gateway (PyPI) Vendor— Affected 2.0.0rc1 to before 3.3.0 Fixed in 3.3.0 Patch available GHSA-chq7-94j8-cj28

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:jupyter:enterprise_gateway:*:*:*:*:*:*:*:*2.1.0 to before 3.3.0Vulnerablejupyterlab
cpe:2.3:a:jupyter:enterprise_gateway:2.0.0:-:*:*:*:*:*:*2.0.0Vulnerablejupyterlab
cpe:2.3:a:jupyter:enterprise_gateway:2.0.0:rc1:*:*:*:*:*:*2.0.0 rc1Vulnerablejupyterlab
cpe:2.3:a:jupyter:enterprise_gateway:2.0.0:rc2:*:*:*:*:*:*2.0.0 rc2Vulnerablejupyterlab
  • cpe:2.3:a:jupyter:enterprise_gateway:*:*:*:*:*:*:*:* Versions 2.1.0 to before 3.3.0 Vulnerable ·jupyterlab
  • cpe:2.3:a:jupyter:enterprise_gateway:2.0.0:-:*:*:*:*:*:* Versions 2.0.0 Vulnerable ·jupyterlab
  • cpe:2.3:a:jupyter:enterprise_gateway:2.0.0:rc1:*:*:*:*:*:* Versions 2.0.0 rc1 Vulnerable ·jupyterlab
  • cpe:2.3:a:jupyter:enterprise_gateway:2.0.0:rc2:*:*:*:*:*:* Versions 2.0.0 rc2 Vulnerable ·jupyterlab

Remediation

  • Fix · CNA enterprise_gateway (jupyter-server) Fixed in 3.3.0
  • Fix · GHSA-chq7-94j8-cj28 jupyter_enterprise_gateway (PyPI) Fixed in 3.3.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-44180
  2. 2026-10-03 Alias added: GHSA-chq7-94j8-cj28

References

Exploit 1

Other 2

  • TI-2026-32161 Jupyter Enterprise Gateway Has Kubernetes Manifest Injection via Jinja2 Template Rendering CVSS 4.0CRITICAL 10.0
  • TI-2026-32160 Jupyter Enterprise Gateway: Jinja2 Template Server Side Template Injection results in Remote Code Execution CVSS 4.0CRITICAL 10.0

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences