Unauthenticated Access Vulnerability in Oracle Helidon Web Server
CVE-2026-73907

7.5HIGH

Key Information:

Vendor

Oracle
Status
Helidon
Vendor
CVE Published:
18 August 2026

What is CVE-2026-73907?

A vulnerability exists in Oracle's Helidon product, specifically in the Imperative Web Server component. This flaw allows unauthenticated attackers with network access via HTTP to compromise the Helidon environment. Successful exploitation of this vulnerability can lead to unauthorized access to sensitive data, effectively providing attackers with complete access to all data available through Helidon. Organizations using the affected version, 3.2.18, are urged to take immediate action to mitigate potential risks.

Affected Version(s)

Helidon 3.0.0 <= 3.2.17

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

.