Template Injection Affecting org.thymeleaf:thymeleaf package, versions [,3.1.4.RELEASE)
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-JAVA-ORGTHYMELEAF-16078372
- published16 Apr 2026
- disclosed15 Apr 2026
- creditThomas Reburn
Introduced: 15 Apr 2026
NewCVE-2026-40477 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade org.thymeleaf:thymeleaf to version 3.1.4.RELEASE or higher.
Overview
Affected versions of this package are vulnerable to Template Injection due to the TemplateEngine's improper restriction of accessible object scope during expression evaluation. An attacker can inject into sensitive objects to execute unauthorized actions.