CVE-2026-12894High· 8.8▾ Twilight

A flaw was found in the Qute template engine, which is used by Quarkus to generate dynamic content like HTML pages or emails

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score49/ 100 · Moderate

impact 48.4 · likelihood 0.2 · exploitation 0

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Proof of concept

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Published

Aug 31, 2026

Updated

Oct 12, 2026

CVSS

8.8

Vendor

Quarkus

Product

io.quarkus:quarkus-qute

CWE

CWE-1336

Depth score

49 · Moderate

EPSS

0.97% · p62

Platforms

—

Source

NVD

Vector

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

CISA SSVC

decided 2026-08-31

Exploitation: none
Automatable: no
Technical impact: total

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.

EPSS history

Exploit-prediction probability, daily snapshots since Sep 11.

0.5% → 1.0%▲ 0.5%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

4 events · 56 days

Aug 31, 2026Published
Disclosed via NVD
Sep 11, 2026EPSS first tracked
0.5%
Oct 12, 2026Record revised
Last analysed / modified upstream
Oct 26, 2026EPSS peak
0.5% → 1.0%

Quarkus CWE-1336 #nvd #cve.org #csaf #vex #red-hat

Affected

io.quarkus:quarkus-qute >= 3.27.0 < 3.27.5.SP1
io.quarkus:quarkus-qute >= 3.33.0 < 3.33.3.SP1
camel-quarkus-qute
camel-quarkus-qute-component
quarkus-qute (all versions)
camel-quarkus-qute
camel-quarkus-qute-component
quarkus-qute

Patched in

build_of_apache_camel 3.33.3.SP1
build_of_quarkus 3.27.5.SP1
build_of_quarkus 3.33.3.SP1

Full technical detail▾

Overview

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.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

Vendor advisories

RHSA-2026:63302 · Red Hat · fixed in: Red Hat Build of Apache Camel 3.33.3.SP1 · released 2026-09-03 · advisory
RHSA-2026:62515 · Red Hat · fixed in: Red Hat build of Quarkus 3.27.5.SP1 · released 2026-09-03 · advisory
RHSA-2026:62555 · Red Hat · fixed in: Red Hat build of Quarkus 3.33.3.SP1 · released 2026-09-03 · advisory
Red Hat VEX · Important · affected: Red Hat build of Apache Camel 4 for Quarkus 3 · no fix planned: Red Hat build of Apache Camel 4 for Quarkus 3 · updated 2026-10-20 · vex

References

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd#cve.org#csaf#vex#red-hat

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