Vulnerability in Oracle Fusion Middleware Helidon Product
CVE-2026-101581

6.5MEDIUM

Key Information:

Vendor

Oracle
Status
Helidon
Vendor
CVE Published:
20 October 2026

What is CVE-2026-101581?

A vulnerability exists in the Helidon product of Oracle Fusion Middleware that allows attackers with network access via DNS to exploit the helidon-webclient-dns-resolver-round-robin component. This easily exploitable flaw allows unauthorized users to manipulate Helidon's accessible data, potentially leading to unauthorized updates, deletions, or inserts. Additionally, the vulnerability may enable attackers to cause a partial denial of service to the Helidon application, impacting its availability and integrity.

Affected Version(s)

Helidon 4.0.0 <= 4.5.5

Helidon 27.0.0

References

https://www.oracle.com/security-alerts/cpuoct2026.html
vendor-advisory

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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