CVE-2026-44845

Medium

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.

SeverityMedium
CVSS6.7
Exploit probability—
ProductJumpserver
PublishedAug 17, 2026
First seenAug 17, 2026
Weakness typeCWE-1336CWE-1336

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
jumpserver jumpserver< 4.10.17—

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