Denial of Service Vulnerability in Oracle Fusion Middleware Helidon Product
CVE-2026-83458

5.3MEDIUM

Key Information:

Vendor

Oracle
Status
Helidon
Vendor
CVE Published:
15 September 2026

What is CVE-2026-83458?

An unauthenticated vulnerability exists in Oracle's Helidon framework within the Fusion Middleware suite, allowing an attacker with network access to exploit the application via HTTP. This exposure can lead to unauthorized manipulation of the system, potentially causing a partial denial of service (DoS) affecting availability. The affected versions are 4.0.0 through 4.5.4. Organizations using these versions must apply appropriate patches to mitigate the risks associated with this vulnerability.

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

.