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17 April 2026

Vulnerabilities first published on this day (UTC), newest first.

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  • Critical 9.1
    CVE-2026-40478 Exploited

    Improper neutralization of specific syntax patterns for unauthorized expressions in Thymeleaf

    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 expre…

    thymeleaf thymeleaf org.thymeleaf:thymeleaf-spring5 org.thymeleaf:thymeleaf-spring6 Maven
  • Critical 9.1
    CVE-2026-40477 Exploited Public exploit

    Improper restriction of the scope of accessible objects in Thymeleaf expressions

    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 expressio…

    thymeleaf thymeleaf org.thymeleaf:thymeleaf-spring6 org.thymeleaf:thymeleaf-spring5 Maven