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.
Published: 2026-08-31
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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.

Tracking

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Advisories

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History

Tue, 01 Sep 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Mon, 31 Aug 2026 21:30:00 +0000

Type Values Removed Values Added
First Time appeared Redhat build Of Apache Camel For Quarkus
Redhat build Of Quarkus
Redhat jboss Enterprise Application Platform Expansion Pack
Vendors & Products Redhat build Of Apache Camel For Quarkus
Redhat build Of Quarkus
Redhat jboss Enterprise Application Platform Expansion Pack

Mon, 31 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


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'}


Subscriptions

Redhat Build Of Apache Camel For Quarkus Build Of Quarkus Camel Quarkus Jboss Enterprise Application Platform Expansion Pack Jbosseapxp Quarkus
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

Updated: 2026-08-31T14:32:42.486Z

cve-icon NVD

Status : Awaiting Analysis

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

Modified: 2026-09-01T21:03:04.987

Link: CVE-2026-12894

cve-icon Redhat

Severity : Important

Publid Date: 2026-08-31T11:30:40Z

Links: CVE-2026-12894 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-31T21:15:05Z

Weaknesses