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PYSEC-2026-364 Jupyter Enterprise Gateway: Jinja2 Template Server Side Template Injection resulting in Remote Code Execution

🗓️ 29 Jun 2026 11:50:52Reported by GoogleType 
osv
 osv🔗 osv.dev👁 4 Views

SSTI in Jupyter Enterprise Gateway manifests enables code execution via Jinja2 in kernel env variables.

Related
Refs
ReporterTitlePublishedViews
Family
Circl		CVE-2026-44181
3 Jun 202603:02
–circl
CVE		CVE-2026-44181
3 Jun 202621:36
–cve
Github Security Blog		Jupyter Enterprise Gateway: Jinja2 Template Server Side Template Injection resulting in Remote Code Execution
3 Jun 202621:36
–github
OSV		GHSA-F49J-V924-FX9W Jupyter Enterprise Gateway: Jinja2 Template Server Side Template Injection resulting in Remote Code Execution
3 Jun 202621:36
–osv
Positive Technologies		PT-2026-46125
3 Jun 202600:00
–ptsecurity
Positive Technologies		PT-2026-53452
29 Jun 202600:00
–ptsecurity
Snyk		Improper Neutralization of Special Elements Used in a Template Engine
3 Jun 202621:36
–snyk
vulnersOsv		h2o-notebook (>=0.3.0 <=0.4.1) potentially affected by CVE-2026-44181 via jupyter-enterprise-gateway (=3.2.2)
3 Jun 202621:36
–vulnersosv
vulnersOsv		h2o-notebook (>=0.3.0 <=0.4.1) potentially affected by CVE-2026-44181 via jupyter-enterprise-gateway (=3.2.2)
3 Jun 202621:36
–vulnersosv
vulnersOsv		h2o-notebook (>=0.3.0 <=0.4.1) potentially affected by CVE-2026-44181 via jupyter-enterprise-gateway (=3.2.2)
29 Jun 202611:50
–vulnersosv
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29 Jun 2026 12:15Current
6.4Medium risk
Vulners AI Score6.4
CVSS 410
EPSS0.0086
server side templateremote code executionjupyter enterprise gatewaykubernetes manifestsjinja templatekernel environment variables
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