Vulnerability in Imperative Web Server of Oracle Fusion Middleware
CVE-2026-73937

8.2HIGH

Key Information:

Vendor

Oracle
Status
Helidon
Vendor
CVE Published:
18 August 2026

What is CVE-2026-73937?

An unauthenticated network-accessible vulnerability exists in the Imperative Web Server component of Oracle's Helidon framework. This issue, present in version 4.5.0, allows malicious actors to exploit the vulnerability via HTTP/2 requests, potentially leading to a complete denial of service by causing frequent crashes or unresponsiveness. Additionally, unauthorized users may gain access to certain data sets within Helidon, compromising confidentiality and availability.

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:
8.2
Severity:
HIGH
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.