Answer in brief
CVE-2026-12894 records a Unknown severity vulnerability in Io.quarkus:quarkus-qute: quarkus-qute:server-side template injection (ssti) vulnerability in reflectionvalueresolver of the quarkus qute template engine. The current sources do not mark it as known exploited. The current feed maps Quarkus/quarkus-qute (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Quarkus/quarkus-qute (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Quarkus/quarkus-qutegeneric | >=3.27.0 <3.27.5.SP1 || >=3.33.0 <3.33.3.SP1 | 3.27.5.SP1, 3.33.3.SP1 |
Published upstream
Aug 31, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 31, 2026
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.
Quoted source text, attributed separately from HOL analysis.