Denial of Service Vulnerability in Helidon Product of Oracle Fusion Middleware
CVE-2026-73934

7.5HIGH

Key Information:

Vendor

Oracle
Status
Helidon
Vendor
CVE Published:
18 August 2026

What is CVE-2026-73934?

The vulnerability in the Helidon component of Oracle Fusion Middleware allows unauthenticated attackers with network access via HTTP/2 to exploit the system. Successful exploitation can result in unauthorized denial of service, causing Helidon to hang or crash repeatedly, significantly impacting service availability.

Affected Version(s)

Helidon 3.0.0 <= 3.2.18

References

https://www.oracle.com/security-alerts/cspuaug2026.html
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
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

.