Template injection in thymeleaf-spring5

CRITICAL 9.8CVE-2021-43466 · GHSA-qcj6-jqrg-4wp2 · Published 09/11/2021 · updated 17/06/2026

In short

CVE-2021-43466 is a CRITICAL (CVSS 9.8) vulnerability affecting org.thymeleaf:thymeleaf-spring5, thymeleaf (thymeleaf).
Chance of exploitation in the next 30 days (EPSS): 4.0%, higher than 90.5% of all vulnerabilities.
Fix: update to 3.0.13.RELEASE or later.

Package	Affected versions	Patched versions
org.thymeleaf:thymeleaf-spring5 Maven	`< 3.0.13.RELEASE`	`3.0.13.RELEASE`
thymeleaf thymeleaf	`= 3.0.12`	No fix yet

In the thymeleaf-spring5:3.0.12 component, thymeleaf combined with specific scenarios in template injection may lead to remote code execution.

NVD description

In the thymeleaf-spring5:3.0.12 component, thymeleaf combined with specific scenarios in template injection may lead to remote code execution.

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Package

Affected versions

Patched versions

Maven

< 3.0.13.RELEASE

3.0.13.RELEASE

= 3.0.12

No fix yet

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