Red Hat Lightwell has released org.thymeleaf:thymeleaf 3.0.15.RELEASE-rhlw-00009 with backported fixes for CVE-2026-40477, CVE-2026-40478, and CVE-2026-41901.
CVE-2026-40477: Improper restriction of the scope of accessible objects in Thymeleaf expressions
CVE-2026-40478: Improper neutralization of specific syntax patterns for unauthorized expressions in Thymeleaf
CVE-2026-41901: Thymeleaf: Improper recognition of unauthorized syntax patterns in sandboxed Thymeleaf expressions
This patched artifact is a drop-in replacement for org.thymeleaf:thymeleaf 3.0.15.RELEASE-rhlw-00009 from Maven Central.
{
"backport_base_version": "3.0.15.RELEASE-rhlw-00009",
"remediated_version": "3.0.15.RELEASE-rhlw-00009",
"repository_url": "https://packages.redhat.com/lightwell/java/remediated/"
}
"https://github.com/project-lightwell/lightwell-osv/blob/main/advisories/RHLW-2026-e0e5640c50ceea84.json"