Vulnerability in Oracle Hospitality OPERA 5 Property Services Product by Oracle
CVE-2026-34311

9.8CRITICAL

Key Information:

Vendor

Oracle
Status
Oracle Hospitality Opera 5 Property Services
Vendor
CVE Published:
28 May 2026

What is CVE-2026-34311?

An exploitable vulnerability in the Oracle Hospitality OPERA 5 Property Services allows an unauthenticated attacker with network access via HTTP to compromise the system. Affected versions include 5.6.19.24, 5.6.22, 5.6.25.19, 5.6.27.6, and 5.6.28. Successful exploitation may lead to complete takeover of the OPERA 5 Property Services, impacting confidentiality, integrity, and availability of the affected systems. It is crucial for users to implement the necessary security measures as outlined in the Oracle Advisory.

Affected Version(s)

Oracle Hospitality OPERA 5 Property Services 5.6.19.24

Oracle Hospitality OPERA 5 Property Services 5.6.22

Oracle Hospitality OPERA 5 Property Services 5.6.25.19

References

https://www.oracle.com/security-alerts/cspumay2026.html
vendor-advisory

CVSS V3.1

Score:
9.8
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

.