CVE-2026-44180: Jupyter Enterprise Gateway launches remote Jupyter Notebook kernels across distributed clusters like Apache Sp

This week

CRITICAL 9.8REMOTEWATCHLISTUPGRADE

CVE-2026-44180 is a critical-severity flaw (CVSS 9.8) affecting enterprise gateway. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 k

Why this priority

Critical severity
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-20
Published	2026-07-16
Last modified	2026-10-24

Publisher (CNA): GitHub, Inc. · Vendor: jupyter

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-16 22:17 UTCPublished CVE record published
2026-10-24 20:10 UTCUpdated Record last modified

jupyter enterprise gateway UPGRADE

Affected: >= 2.1.0 and < 3.3.0 · 2.0.0 · 2.0.0 rc1 · 2.0.0 rc2

Fixed in: 3.3.0

Safe to downgrade to: a release before 2.0.0

1. Check installed version

apt-cache policy enterprise-gateway || rpm -q enterprise-gateway || enterprise-gateway --version

2. UPGRADE to 3.3.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade enterprise-gateway

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade enterprise-gateway

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2.0.0 (Debian / Ubuntu)

apt-cache madison enterprise-gateway sudo apt install enterprise-gateway=<VERSION_BEFORE_2.0.0> sudo apt-mark hold enterprise-gateway

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list enterprise-gateway sudo dnf downgrade enterprise-gateway-<VERSION_BEFORE_2.0.0> sudo dnf versionlock add enterprise-gateway

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Exact fixes by distribution

Python (pip) · jupyter_enterprise_gateway · FIXED · 3.3.0 · vulnerable: >= 2.0.0rc1, < 3.3.0 · source

pip install --upgrade "jupyter_enterprise_gateway>=3.3.0" pip show jupyter_enterprise_gateway

Fedora 46 · conda · FIXED · 26.9.4-2.fc46 · FEDORA-2026-09931756f1 · source

sudo dnf upgrade --advisory=FEDORA-2026-09931756f1

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: github.com/jupyter-server/enterprise_gateway/security/advisories/GHSA-chq7-94j8-cj28

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-44180?

enterprise gateway: upgrade to 3.3.0. Exact commands for each OS are on this page.

Is CVE-2026-44180 being exploited?

CVE-2026-44180 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-44180 affect?

CVE-2026-44180 affects enterprise gateway. Severity is critical (CVSS 9.8). 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 defaul

How urgent is CVE-2026-44180?

Priority 66/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Docker vulnerabilities · Kubernetes vulnerabilities · Jupyter vulnerabilities · Apache Spark vulnerabilities

Related CVEs

CVE-2026-44181 CRITICAL 10.0 UPGRADE Jupyter Enterprise Gateway launches remote Jupyter Notebook kernels across distributed clusters like Apache Sp
CVE-2026-44182 CRITICAL 10.0 UPGRADE Jupyter Enterprise Gateway launches remote Jupyter Notebook kernels across distributed clusters like Apache Sp

References

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