Improper Neutralization of Special Elements Used in a Template Engine Affecting jupyter-enterprise-gateway package, versions [2.0.0rc2,3.3.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-JUPYTERENTERPRISEGATEWAY-17661135
- published28 Jun 2026
- disclosed3 Jun 2026
- creditUnknown
Introduced: 3 Jun 2026
CVE-2026-44181 (opens in a new tab)How to fix?
Upgrade jupyter-enterprise-gateway to version 3.3.0 or higher.
Overview
jupyter-enterprise-gateway is an A web server for spawning and communicating with remote Jupyter kernels
Affected versions of this package are vulnerable to Improper Neutralization of Special Elements Used in a Template Engine via the rendering of Kubernetes manifest templates using untrusted environment variables in the KERNEL_XXX family. An attacker can execute arbitrary Python code and operating system commands by injecting malicious Jinja2 template expressions into these variables, potentially gaining control over the service account token and compromising the entire Kubernetes cluster by creating privileged pods or accessing sensitive resources.