WebSocket Vulnerability in Oracle Fusion Middleware's Helidon Product
CVE-2026-83480

5.3MEDIUM

Key Information:

Vendor

Oracle
Status
Helidon
Vendor
CVE Published:
15 September 2026

What is CVE-2026-83480?

A vulnerability has been identified in the WebSocket component of Oracle Fusion Middleware's Helidon product, affecting versions 4.0.0 to 4.5.4. This issue allows for potential exploitation by unauthenticated attackers who have network access via HTTP, granting them the ability to perform actions that can lead to partial denial of service. Organizations utilizing affected versions should take appropriate measures to mitigate risks and secure their environments.

Affected Version(s)

Helidon 4.0.0 <= 4.5.4

References

https://www.oracle.com/security-alerts/cspusep2026.html
vendor-advisory

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.