Thymeleaf vulnerabilities
We track 4 vulnerabilities in Thymeleaf products across 3 products. 4 are rated high or critical, and none are known to be exploited. The most recent was published on May 12, 2026.
Latest Thymeleaf vulnerabilities
- 9.0 Critical severity
thymeleaf: Improper Neutralization of Special Elements used in an Expression Language Statement
Thymeleaf is a server-side Java template engine for web and standalone environments. Prior to 3.1.5.RELEASE, a security bypass vulnerability exists in the expression execution mechanisms of Thymeleaf. Although the library provides mechanisms to avoid the execu
- 9.0 Critical severity
thymeleaf: Improper Neutralization of Special Elements used in an Expression Language Statement
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 expres
- 9.0 Critical severity
thymeleaf: Improper Neutralization of Special Elements used in an Expression Language Statement
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 expression execution mechanisms. Although the library provides mechanisms to prevent expression
- 7.5 High severity
Spring Boot Admin: Improper Neutralization of Special Elements used in a Command
Thymeleaf through 3.1.1.RELEASE, as used in spring-boot-admin (aka Spring Boot Admin) through 3.1.1 and other products, allows sandbox bypass via crafted HTML. This may be relevant for SSTI (Server Side Template Injection) and code execution in spring-boot-adm