CVE-2026-47889: VMware Spring Framework

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

A WebFlux application running on the Jetty 12 Core reactive adapter serializes response cookies without the sameSite attribute. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19

Affected products

• VMware Spring Framework: from 6.2.0, before 6.2.20 (fixed in 6.2.20); from 7.0.0, before 7.0.8.1 (fixed in 7.0.8.1)

Published 2026-08-27. Last modified 2026-09-10.