Information Exposure Through an Error Message in Spring Framework - CVE-2026-47893

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Main Vulnerability Database Vulnerabilities #VU146226

Information Exposure Through an Error Message in Spring Framework - CVE-2026-47893

Published: August 28, 2026


Vulnerability identifier: #VU146226
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-47893
CWE-ID: CWE-209
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to insertion of sensitive information into error messages in HandshakeWebSocketService when handling WebSocket handshake requests. A remote attacker can send a request that triggers an exception to disclose sensitive information.


Affected software

Spring Framework
Library Support for Spring

How to mitigate CVE-2026-47893

Install security update from vendor's website.

Spring Framework - addressed in versions 5.2.26, 5.3.50, 6.0.31, 6.1.29, 6.2.20, 7.0.8.1, 7.0.9
Library Support for Spring - update to 3.5.19

External References

Related Security Bulletins