CVE-2026-44845

What it is

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.

At a glance

Exploitability

Can be exploited over the network with an admin-level account. High risk of data exposure, service disruption.

Exploit odds

0.7% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-08-17 21:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-09-09 21:11 UTC Last updatedMost recent change to the record

Details

Published

2026-08-17 21:16 UTC

Last modified

2026-09-09 21:11 UTC

Exploit probability

0.7% · EPSS, next 30 days

Weakness

CWE-1336

Record status

Deferred

Attack profile CVSS 3.1 · 6.7

Attack vector

Network

Complexity

Low

Privileges needed

High

User interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

Low

Availability

High