CVE-2026-12894

Io.quarkus:quarkus-qute: quarkus-qute:server-side template injection (ssti) vulnerability in reflectionvalueresolver of the quarkus qute template engine

State: Published
Severity: 8.8 High
Published: Aug 31, 2026
Updated: Oct 20, 2026
Reserved: Jun 22, 2026

Read the record on cve.org

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.

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	redhat

Weaknesses

CWE-1336 Improper Neutralization of Special Elements Used in a Template Engine

Affected Products

Product	Versions
quarkus-quteQuarkus	3.27.0 to before 3.27.5.SP1Affected 3.33.0 to before 3.33.3.SP1Affected
Red Hat Build of Apache Camel 3.33.3.SP1Red Hat	3.33.3.redhat-00005 and laterNot affected
Red Hat build of Quarkus 3.27.5.SP1Red Hat	3.27.5.redhat-00004 and laterNot affected
Red Hat build of Quarkus 3.33.3.SP1Red Hat	3.33.3.redhat-00005 and laterNot affected
Red Hat build of Apache Camel 4 for Quarkus 3Red Hat
Red Hat build of Apache Camel 4 for Quarkus 3Red Hat
Red Hat build of Apache Camel 4 for Quarkus 3Red Hat
Red Hat JBoss Enterprise Application Platform Expansion PackRed Hat
Red Hat JBoss Enterprise Application Platform Expansion PackRed Hat
Red Hat JBoss Enterprise Application Platform Expansion PackRed Hat

References

RHSA-2026:62515vendor-advisory
RHSA-2026:62555vendor-advisory
RHSA-2026:63302vendor-advisory
https://access.redhat.com/security/cve/CVE-2026-12894vdb-entry
RHBZ#2491319issue-tracking

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