Spring Framework 5.2-7.0 WS Header Leak (CVE-202647893)
CVE-2026-47893 Published on August 27, 2026

Spring Framework Request Headers Included in Exception Reasons in HandshakeWebsocketService
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

NVD

Vulnerability Analysis

CVE-2026-47893 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
NONE
Availability Impact:
NONE

Weakness Type

Generation of Error Message Containing Sensitive Information

The software generates an error message that includes sensitive information about its environment, users, or associated data.


Products Associated with CVE-2026-47893

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VMware Spring Framework
 

Affected Versions

Spring Framework: