Security Bulletin: MongoDB Enterprised Advanced affected by: Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection') (CVE-2026-40477, CVE-2026-40478)

Summary There are vulnerabilities in thymeleaf-3.1.2.RELEASE.jar used in MongoDB Enterprised Advanced for IBM, involving CVE-2026-40477, CVE-2026-40478. The vulnerabilities have been addressed. Vulnerability Details CVEID:CVE-2026-40477 DESCRIPTION: Thymeleaf is a server-side Java template engine...

CVE-2026-40477

creationtimestamp| type| source ---|---|--- 2026-04-17 23:20:20+00:00| published-proof-of-concept| Telegram/pKVsSWpOH4ztPjCePA6f2TZasDjFWE2MPBTfIhx3aN4UBbI 2026-04-17 23:21:32+00:00| seen| https://bsky.app/profile/cve.skyfleet.blue/post/3mjq2uskvyj2d...

CVE-2026-40477

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 expression injection, it fails to properly...