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CVE-2026-44845

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

Published: Aug 17, 2026Updated: Aug 18, 2026 Sources: CVE List NVDCWE-1336
6.7MEDIUM
NVD MITRE
EPSS Score
0.5%
Top 59.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:UC:HI:LA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:LIntegrity
Low
A:HAvailability
High
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Weaknesses

CWE-1336

Affected Products

jumpserver
oss-projectaka jumpserver.org
jumpserverMixed
Security Products / identity-access-mgmt

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

https://github.com/jumpserver/jumpserver/security/advisories/GHSA-22h6-pcgh-9v7q
github.com
https://github.com/jumpserver/jumpserver/pull/16749
github.com
https://github.com/jumpserver/jumpserver/pull/16886
github.com
and 2 more references View all →

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