What’s Vulnerable › Vulnerabilities

CVE-2026-112159: JumpServer Template Rendering os command injection

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-19 · updated 2026-10-20
• Weakness: CWE-77

Description

A security vulnerability has been detected in JumpServer up to 4.10.19. The affected element is an unknown function of the component Template Rendering. The manipulation of the argument IP/HOST leads to os command injection. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. Upgrading to version 5.0.0 is sufficient to fix this issue. The identifier of the patch is fcf2904cdb884230e9676f50f37a44d09fa97040. The affected component should be upgraded. 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.

Affected products

• JumpServer: 4.10.0, 4.10.1, 4.10.2, 4.10.3, 4.10.4, 4.10.5 (+14)

References

• https://gist.github.com/Seikruun/b628bb6d4403d9c41a54a4b92d775583
• https://github.com/jumpserver/jumpserver/
• https://github.com/jumpserver/jumpserver/commit/fcf2904cdb884230e9676f50f37a44d09fa97040
• https://github.com/jumpserver/jumpserver/pull/17500/
• https://github.com/jumpserver/jumpserver/releases/tag/v5.0.0
• https://vuldb.com/cve/CVE-2026-112159
• https://vuldb.com/submit/964676
• https://vuldb.com/vuln/422286
• https://vuldb.com/vuln/422286/cti

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