CVE-2026-31864

MEDIUM

6.8

Descricao

JumpServer is an open source bastion host and an operation and maintenance security audit system. a Server-Side Template Injection (SSTI) vulnerability exists in JumpServer's Applet and VirtualApp upload functionality. This vulnerability can only be exploited by users with administrative privileges (Application Applet Management or Virtual Application Management permissions). Attackers can exploit this vulnerability to execute arbitrary code within the JumpServer Core container. The vulnerability arises from unsafe use of Jinja2 template rendering when processing user-uploaded YAML configuration files. When a user uploads an Applet or VirtualApp ZIP package, the manifest.yml file is rendered through Jinja2 without sandbox restrictions, allowing template injection attacks.

Detalhes CVE

Pontuacao CVSS v3.16.8

SeveridadeMEDIUM

Vetor CVSSCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosHIGH

Interacao do usuarioREQUIRED

Publicado3/13/2026

Ultima modificacao3/18/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

fit2cloud:jumpserver

Fraquezas (CWE)

CWE-1336

Referencias

https://github.com/jumpserver/jumpserver/pull/16608(security-advisories@github.com)

https://github.com/jumpserver/jumpserver/security/advisories/GHSA-qx8h-rx2j-j5wc(security-advisories@github.com)

Correlacoes IOC

Sem correlacoes registradas

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