Flaw in Qute Template Engine Exposes Quarkus to Server Control Vulnerability
CVE-2026-12894

8.8HIGH

Key Information:

Vendor

Red Hat
Status
Red Hat Build Of Apache Camel 4 For Quarkus 3
Red Hat Build Of Quarkus
Red Hat Jboss Enterprise Application Platform Expansion Pack
Vendor
CVE Published:
31 August 2026

What is CVE-2026-12894?

A vulnerability exists in the Qute template engine used by Quarkus, enabling attackers to exploit a flaw in the ReflectionValueResolver component. This issue allows unauthorized access to sensitive Java internal functions when the template processes certain data types, such as Enums. By manipulating the template text, an attacker could execute arbitrary commands, leading to potential control over the server environment.

References

https://access.redhat.com/security/cve/CVE-2026-12894
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2491319
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank icysun for reporting this issue.
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