CVE-2026-47891

A Spring WebFlux application that relies on the Aalto XML processor to parse XML input does not correctly enforce the maxInMemorySize limit. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring Framework 5.3.0 - 5.3.49 Spring Framework 5.2.25.RELEASE and earlier

  • Published Aug 27, 2026
  • CVSS 9.8 critical
  • 0.5% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-47891 at the National Vulnerability Database