Unauthenticated Network Access Vulnerability in Oracle Helidon Product
CVE-2026-73908

7.5HIGH

Key Information:

Vendor

Oracle
Status
Helidon
Vendor
CVE Published:
18 August 2026

What is CVE-2026-73908?

An unauthenticated network access vulnerability exists in Oracle's Helidon product, specifically within the Imperative Web Server component. This flaw allows an attacker with network access via HTTP to compromise the Helidon server without needing any authentication. Successful exploitation may lead to unauthorized access to sensitive data, posing a significant risk to the confidentiality of all data accessible through Helidon. Users should take immediate steps to mitigate this risk and ensure their systems are secure.

Affected Version(s)

Helidon 4.0.0 <= 4.4.1

References

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

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.