JumpServer up to 4.10.19 Template Rendering IP/HOST os command injection

Summaryinfo

A vulnerability was found in JumpServer up to 4.10.19 and classified as problematic. The impacted element is an unknown function of the component Template Rendering. The manipulation of the argument IP/HOST results in os command injection. This vulnerability is identified as CVE-2026-112159. The attack can be executed remotely. Additionally, an exploit exists. It is suggested to upgrade the affected component. The vendor confirms: "This issue was identified quite some time ago, and we have already fixed it in the v5 branch. (...) The fix will also be included in an upcoming v4 release.

Detailsinfo

A vulnerability was found in JumpServer up to 4.10.19. It has been classified as problematic. Affected is an unknown code of the component Template Rendering. The manipulation of the argument IP/HOST with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is available at gist.github.com. This vulnerability is traded as CVE-2026-112159. The exploitability is told to be easy. It is possible to launch the attack remotely. Successful exploitation requires user interaction by the victim. Technical details and a public exploit are known. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

The exploit is shared for download at gist.github.com. It is declared as proof-of-concept. The vendor confirms: "This issue was identified quite some time ago, and we have already fixed it in the v5 branch. (...) The fix will also be included in an upcoming v4 release.

Upgrading to version 5.0.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch fcf2904cdb884230e9676f50f37a44d09fa97040 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Name

• JumpServer

Version

• 4.10.0
• 4.10.1
• 4.10.2
• 4.10.3
• 4.10.4
• 4.10.5
• 4.10.6
• 4.10.7
• 4.10.8
• 4.10.9
• 4.10.10
• 4.10.11
• 4.10.12
• 4.10.13
• 4.10.14
• 4.10.15
• 4.10.16
• 4.10.17
• 4.10.18
• 4.10.19

License

• open-source

Website

• Product: https://github.com/jumpserver/jumpserver/

CPE 2.3info

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CPE 2.2info

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Submitinfo

Accepted

• Submit #964676: JumpServer 4.10.19 OS Command Injection (by seikruun)

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