Unauthenticated Access Flaw in Helidon Product by Oracle
CVE-2026-73933

7.3HIGH

Key Information:

Vendor

Oracle
Status
Helidon
Vendor
CVE Published:
18 August 2026

What is CVE-2026-73933?

An access control vulnerability exists within Oracle's Helidon product of the Fusion Middleware suite, specifically in version 4.5.3. This flaw allows an unauthenticated attacker with network access via HTTP to exploit Helidon and potentially manipulate its accessible data. Unauthorized actions may include updating, inserting, or deleting data, in addition to gaining unauthorized read access to specific datasets. Furthermore, attackers could induce a partial denial of service (DoS) affecting Helidon's functionality.

Affected Version(s)

Helidon 4.5.3

References

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

CVSS V3.1

Score:
7.3
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.