Maintainers of Thymeleaf, a widely used template engine for Java web applications, fixed a rare critical vulnerability that allows unauthenticated attackers to execute malicious code on servers. The vulnerability, tracked as CVE-2026-40478, is rated 9.1 on the CVSS severity scale and is described as a Server-Side Template Injection (SSTI) issue. Thymeleaf has a sandbox-like protection…
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