CVE-2026-12894

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.

CVSS 3.1

8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

1.0% chance of exploitation in the next 30 days; higher than 61% of CVEs (scores of 2026-10-25)

CWE

CWE-1336

Published

2026-08-31

Modified

2026-10-20

Record from

the NVD, synced 2026-10-21

References

• https://access.redhat.com/errata/RHSA-2026:62515
• https://access.redhat.com/errata/RHSA-2026:62555
• https://access.redhat.com/errata/RHSA-2026:63302
• https://access.redhat.com/security/cve/CVE-2026-12894
• https://bugzilla.redhat.com/show_bug.cgi?id=2491319

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