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.

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Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

Applications utilizing the Quarkus Qute template engine should ensure that untrusted input is not directly incorporated into template content. Restricting access to the application's template rendering functionality to trusted sources can reduce the attack surface.

History

Mon, 31 Aug 2026 12:30:00 +0000

Type Values Removed Values Added
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.
Title Quarkus-qute: io.quarkus.qute.reflectionvalueresolver: quarkus:server-side template injection (ssti) vulnerability in reflectionvalueresolver of the quarkus qute template engine
First Time appeared Redhat
Redhat camel Quarkus
Redhat jbosseapxp
Redhat quarkus
Weaknesses CWE-1336
CPEs cpe:/a:redhat:camel_quarkus:3
cpe:/a:redhat:jbosseapxp
cpe:/a:redhat:quarkus:3
Vendors & Products Redhat
Redhat camel Quarkus
Redhat jbosseapxp
Redhat quarkus
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-08-31T14:32:46.203Z

Reserved: 2026-06-22T12:14:04.768Z

Link: CVE-2026-12894

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-31T13:17:20.753

Modified: 2026-08-31T13:17:20.753

Link: CVE-2026-12894

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-31T13:30:04Z

Weaknesses