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CVE-2026-44845— JumpServer: Remote Command Execution (RCE) via Jinja Template Injection in Applet Host Deployment

CVSS 6.7 · Medium EPSS 0.50% · P41

Affected Version Matrix 1

VendorProductVersion RangeStatus
jumpserverjumpserver< 4.10.17affected
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I. Basic Information for CVE-2026-44845

Vulnerability Information
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Vulnerability Title
JumpServer: Remote Command Execution (RCE) via Jinja Template Injection in Applet Host Deployment
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1336
Source: CVE Program / CVE List V5
Vulnerability Title
Jumpserver 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Jumpserver是JumpServer公司开源的一款运维审计堡垒机。 Jumpserver 4.10.17之前版本存在代码注入漏洞，该漏洞源于经过身份验证的管理员可在IP/Host字段或Core Service Address字段注入Jinja2表达式，导致Ansible在Applet Host部署期间评估ansible_host库存数据或playbook变量，从而在JumpServer控制节点上执行任意命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
jumpserverjumpserver < 4.10.17 -

II. Public POCs for CVE-2026-44845

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III. Intelligence Information for CVE-2026-44845

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Patches & Fixes for CVE-2026-44845 (2)

Vendor Advisories for CVE-2026-44845 (1)

Vendor Pages for CVE-2026-44845 (1)

Same Patch Batch · jumpserver · 2026-08-17 · 3 CVEs total

CVE-2026-448466.2 MEDIUMJumpServer: Privilege Overwrite via Organization Invite Logic Flaw
CVE-2026-543365.4 MEDIUMJumpServer: KoKo Web Terminal SFTP Path Traversal on Authorized Asset

IV. Related Vulnerabilities

Same product: jumpserver
Same vendor: jumpserver
Same weakness: CWE-1336

V. Comments for CVE-2026-44845

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