Unauthorized Access Vulnerability in Helidon by Oracle
CVE-2026-73917

9.1CRITICAL

Key Information:

Vendor

Oracle
Status
Helidon
Vendor
CVE Published:
18 August 2026

What is CVE-2026-73917?

A vulnerability exists in Oracle's Helidon product within the Imperative Web Server component. This flaw allows unauthenticated attackers with network access via HTTP to gain unauthorized access. Exploiting this vulnerability could lead to unauthorized creation, deletion, or modification of sensitive data, significantly impacting the confidentiality and integrity of the information stored in Helidon. It is crucial for users to implement necessary security measures to safeguard against potential attacks that could compromise all accessible data.

Affected Version(s)

Helidon 4.5.0

References

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

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.