A Spring WebFlux application that supports WebSocket connections may expose indirectly sensitive user information by including request headers in an exception reason.
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
HIGH
Vulnerability intelligence
CVE-2026-47893
CVSS 3.17.5
SeverityHigh
Known exploitedNo
NVD references:
Primary source: NIST National Vulnerability Database