Answer in brief
CVE-2026-44181 records a Critical severity (CVSS 10.0) vulnerability in Jupyter Enterprise Gateway: Jinja2 Template Server Side Template Injection results in Remote Code Execution. The current sources do not mark it as known exploited. The current feed maps jupyter-server/enterprise_gateway (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 10.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps jupyter-server/enterprise_gateway (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:jupyter:enterprise_gateway:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:a:jupyter:enterprise_gateway:2.0.0:-:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:a:jupyter:enterprise_gateway:2.0.0:rc2:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| jupyter-server/enterprise_gatewaygeneric | >= 2.0.0rc2, < 3.3.0 | Not reported |
Published upstream
Jul 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 17, 2026
Jupyter Enterprise Gateway launches remote Jupyter Notebook kernels across distributed clusters like Apache Spark, Kubernetes, and Docker Swarm. In versions 2.0.0rc2 and above, prior to 3.3.0, the environment variables (KERNEL_XXX) used during the rendering of the Kubernetes manifest are vulnerable to Server Side Template Injection (SSTI). By including Jinja2 template expressions it is possible to execution Python code and OS Commands in the Enterprise Gateway service. The code can use or steal the Kubernetes service account token, which can steal Kubernetes secrets and be used to fully compromise the Kubernetes cluster by scheduling a privileged pod or a pod with a hostPath volume mount. This issue has been fixed in version 3.3.0.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-44181 records a Critical severity (CVSS 10.0) vulnerability in Jupyter Enterprise Gateway: Jinja2 Template Server Side Template Injection results in Remote Code Execution. The current sources do not mark it as known exploited. The current feed maps jupyter-server/enterprise_gateway (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 10.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps jupyter-server/enterprise_gateway (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:jupyter:enterprise_gateway:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:a:jupyter:enterprise_gateway:2.0.0:-:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:a:jupyter:enterprise_gateway:2.0.0:rc2:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| jupyter-server/enterprise_gatewaygeneric | >= 2.0.0rc2, < 3.3.0 | Not reported |
Published upstream
Jul 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 17, 2026
Jupyter Enterprise Gateway launches remote Jupyter Notebook kernels across distributed clusters like Apache Spark, Kubernetes, and Docker Swarm. In versions 2.0.0rc2 and above, prior to 3.3.0, the environment variables (KERNEL_XXX) used during the rendering of the Kubernetes manifest are vulnerable to Server Side Template Injection (SSTI). By including Jinja2 template expressions it is possible to execution Python code and OS Commands in the Enterprise Gateway service. The code can use or steal the Kubernetes service account token, which can steal Kubernetes secrets and be used to fully compromise the Kubernetes cluster by scheduling a privileged pod or a pod with a hostPath volume mount. This issue has been fixed in version 3.3.0.
Quoted source text, attributed separately from HOL analysis.