CVE-2026-44845

JumpServer: Remote Command Execution (RCE) via Jinja Template Injection in Applet Host Deployment

Published Aug 17, 2026 CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Jumpserver
Jumpserver jumpserver
Vendors & Products Jumpserver
Jumpserver jumpserver
Type Values Removed Values Added
Description 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.
Title JumpServer: Remote Command Execution (RCE) via Jinja Template Injection in Applet Host Deployment
Weaknesses CWE-1336
References
Metrics cvssV3_1

{'score': 6.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Aug 18, 2026, 6:37 PM
Reserved
May 7, 2026, 9:21 PM
Status
Deferred
Published
Aug 17, 2026, 9:16 PM
Modified
Sep 9, 2026, 9:11 PM