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CVE-2026-12894— Quarkus-qute: io.quarkus.qute.reflectionvalueresolver: quarkus:server-side template injection (ssti) vulnerability in reflectionvalueresolver of the quarkus qute template engine

Quick assessment

Affected
Red Hat Red Hat build of Apache Camel 4 for Quarkus 3
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Quarkus 中使用的 Qute 模板引擎中发现了一个缺陷，该引擎用于生成动态内容，例如 HTML 页面或电子邮件。该问题存在于负责查找数据值的组件（ReflectionValueResolver）中，该组件在处理某些数据类型（如枚举类型 Enums）时，未能有效阻止对敏感 Java 内部函数的访问。能够编写或影响模板文本的攻击者可以利用此绕过机制，通过执行未经授权命令来接管服务器。

CVSS 8.8 · High

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-12894

Vulnerability Information
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Vulnerability Title
Quarkus-qute: io.quarkus.qute.reflectionvalueresolver: quarkus:server-side template injection (ssti) vulnerability in reflectionvalueresolver of the quarkus qute template engine
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in the Qute template engine, which is used by Quarkus to generate dynamic content like HTML pages or emails. The issue exists in the component responsible for looking up data values (ReflectionValueResolver), which fails to properly block access to sensitive Java internal functions when processing certain data types like Enums. An attacker who can provide or influence the template text can exploit this bypass to take control of the server by executing unauthorized commands.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1336
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat build of Apache Camel 4 for Quarkus 3 - cpe:/a:redhat:camel_quarkus:3
Red Hat Red Hat build of Apache Camel 4 for Quarkus 3 - cpe:/a:redhat:camel_quarkus:3
Red Hat Red Hat build of Apache Camel 4 for Quarkus 3 - cpe:/a:redhat:camel_quarkus:3
Red Hat Red Hat build of Quarkus - cpe:/a:redhat:quarkus:3
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack - cpe:/a:redhat:jbosseapxp
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack - cpe:/a:redhat:jbosseapxp
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack - cpe:/a:redhat:jbosseapxp

II. Public POCs for CVE-2026-12894

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III. Intelligence Information for CVE-2026-12894

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Other References for CVE-2026-12894 (2)

IV. Related Vulnerabilities

Same product: Red Hat build of Apache Camel 4 for Quarkus 3
Same vendor: Red Hat
Same weakness: CWE-1336

V. Comments for CVE-2026-12894

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