CVE-2026-44845
MediumCVSS 6.7Exploitation Probability (EPSS)
Low risk41th percentile - higher than 41% of all known CVEs
Summary
JumpServer is an open source bastion host and an operation and maintenance security audit system. Prior to 4.10.17, an authenticated administrator with Applet Host management and deployment permissions can inject Jinja2 expressions into the IP/Host field or Core Service Address field, causing Ansible to evaluate ansible_host inventory data or playbook variables during Applet Host deployment and execute arbitrary commands on the JumpServer control node. This issue is fixed in version 4.10.17.
Risk Assessment
An administrator can execute arbitrary commands on the JumpServer control node, potentially leading to full system compromise.
Recommendation
Update JumpServer to version 4.10.17 or later to prevent Jinja2 injection.
Original NVD description (English source)
JumpServer is an open source bastion host and an operation and maintenance security audit system. Prior to 4.10.17, an authenticated administrator with Applet Host management and deployment permissions can inject Jinja2 expressions into the IP/Host field or Core Service Address field, causing Ansible to evaluate ansible_host inventory data or playbook variables during Applet Host deployment and execute arbitrary commands on the JumpServer control node. This issue is fixed in version 4.10.17.