CVE-2026-47889 PUBLISHED

Spring Framework sameSite Attribute Dropped in JettyCoreServerHttpResponse

Assigner: vmware
Reserved: 20.05.2026 Published: 27.08.2026 Updated: 27.08.2026

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

Product Status

Vendor Spring
Product Spring Framework
Versions Default: unaffected
  • affected from 7.0.0 to 7.0.8 (incl.)
  • affected from 6.2.0 to 6.2.19 (incl.)

References

Problem Types

  • CWE-1275 Sensitive Cookie with Improper SameSite Attribute CWE

Impacts

  • A WebFlux application running on the Jetty 12 Core reactive adapter serializes response cookies without the sameSite attribute.