Unauthorized Access Vulnerability in Oracle Helidon Product
CVE-2026-101590

9.1CRITICAL

Key Information:

Vendor

Oracle
Status
Helidon
Vendor
CVE Published:
20 October 2026

What is CVE-2026-101590?

Oracle's Helidon product contains a vulnerability in the microprofile security component that allows unauthenticated attackers with network access via HTTP to compromise the system. This vulnerability can lead to unauthorized creation, deletion, or modification of critical data. Attackers may gain complete access to all data accessible through Helidon, posing a significant risk to data integrity and confidentiality.

Affected Version(s)

Helidon 4.0.0 <= 4.5.5

References

https://www.oracle.com/security-alerts/cpuoct2026.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

.