CVE-2026-27084: Themerex Buisson

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Deserialization of Untrusted Data vulnerability in ThemeREX Buisson buisson allows Object Injection.This issue affects Buisson: from n/a through <= 1.1.11.

Affected products

• Themerex Buisson: up to and including 1.1.11

Published 2026-03-25. Last modified 2026-06-17.