CVE-2026-40478
Gravedad CVSS v3.1:
CRÍTICA
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
17/04/2026
Última modificación:
24/04/2026
Descripción
*** Pendiente de traducción *** Thymeleaf is a server-side Java template engine for web and standalone environments. Versions 3.1.3.RELEASE and prior contain a security bypass vulnerability in the the expression execution mechanisms. Although the library provides mechanisms to prevent expression injection, it fails to properly neutralize specific syntax patterns that allow for the execution of unauthorized expressions. If an application developer passes unvalidated user input directly to the template engine, an unauthenticated remote attacker can bypass the library's protections to achieve Server-Side Template Injection (SSTI). This issue has ben fixed in version 3.1.4.RELEASE.
Impacto
Puntuación base 3.x
9.00
Gravedad 3.x
CRÍTICA
Productos y versiones vulnerables
| CPE | Desde | Hasta |
|---|---|---|
| cpe:2.3:a:thymeleaf:thymeleaf:*:*:*:*:*:*:*:* | 3.1.4 (excluyendo) |
Para consultar la lista completa de nombres de CPE con productos y versiones, ver esta página



