CVE-2026-44845

Published: Aug 17, 2026Modified: Aug 18, 2026

6.7

Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:H

Exploitability: 1.2 / Impact: 5.5

Source: security-advisories@github.com (Secondary)

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.

Related CWEs

Improper Neutralization of Special Elements Used in a Template Engine

The product uses a template engine to insert or process externally-influenced input, but it does not neutralize or incorrectly neutralizes special elements or syntax that can be interpreted as template expressions or other code directives when processed by the engine.

References (6)

https://github.com/jumpserver/jumpserver/commit/cc57ba0de5f6015746fae11cfc62402b11618e59

Source: security-advisories@github.com

https://github.com/jumpserver/jumpserver/pull/16749

Source: security-advisories@github.com

https://github.com/jumpserver/jumpserver/pull/16886

Source: security-advisories@github.com

https://github.com/jumpserver/jumpserver/releases/tag/v4.10.17

Source: security-advisories@github.com

https://github.com/jumpserver/jumpserver/security/advisories/GHSA-22h6-pcgh-9v7q

Source: security-advisories@github.com

https://github.com/jumpserver/jumpserver/security/advisories/GHSA-22h6-pcgh-9v7q

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.