External risk intelligence

Oracle Hospitality OPERA Property Services Compromise Risk.

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2026-34311

A vulnerability in Oracle Hospitality OPERA 5 Property Services could allow an attacker with network access to compromise the system. This could result in the takeover of services, posing a risk to business operations and data.

3Halo Surface Signal

Oracle Hospitality Opera 5 Property Services

5.6.19.245.6.225.6.25.195.6.27.65.6.28

External exposure likelihood

Halo Surface Signal score for CVE-2026-34311

This product is an enterprise hospitality management system. While such systems often operate within internal corporate or hotel networks, they frequently require network access for various services, and the vulnerability is reachable via HTTP. The deployment context is typically restricted to private networks rather than being openly exposed on the public internet by design.

Horizon Alert

Summary of the vulnerability and why it matters

The Oracle Hospitality OPERA 5 Property Services product contains a vulnerability that could allow attackers to compromise the system. This flaw enables an attacker with network access to gain complete control over the affected services. Successful exploitation could lead to significant business disruption and data breaches.

  • Oracle Hospitality OPERA 5 Property Services
  • Flaw allows unauthenticated network takeover
  • Potential for full system compromise

Attack Path

How an attacker could exploit the issue

An unauthenticated attacker with network access can exploit this vulnerability to compromise the Oracle Hospitality OPERA 5 Property Services. Successful exploitation allows the attacker to gain control of the affected service. This could lead to significant business risk due to potential data breaches or service disruptions.

  • Network access via HTTP is required.
  • Attacker gains network access.
  • Triggering the vulnerability results in takeover.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability in Oracle Hospitality OPERA 5 Property Services presents a significant risk due to its ease of exploitation and the potential for complete system takeover. An unauthenticated attacker with network access could compromise these services, impacting data confidentiality, integrity, and availability. The severity suggests that immediate attention is warranted to mitigate potential business disruption and data loss.

  • Attacker skill level: Low.
  • Required access or conditions: Network access.
  • Business risk or urgency: High.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

An organization can address this vulnerability by first identifying all instances of the affected Oracle Hospitality OPERA 5 Property Services. The vulnerability allows an unauthenticated attacker with network access via HTTP to compromise the service, potentially leading to a full takeover. This presents a significant business risk due to the critical impact on confidentiality, integrity, and availability. The Common Vulnerability Scoring System (CVSS) base score of 9.8 highlights the severity of this issue.

  • Find affected Oracle Hospitality OPERA 5 Property Services.
  • Reduce exposure or isolate risk.
  • Fix, verify, and monitor.

Frequently asked questions

What is Oracle Hospitality OPERA 5 Property Services?

Oracle Hospitality OPERA 5 Property Services is a management system for hotels and properties, handling various operational aspects of hospitality businesses. It is part of Oracle Hospitality Applications.

What type of vulnerability affects Oracle Hospitality OPERA 5 Property Services?

CVE-2026-34311 is an easily exploitable vulnerability in Oracle Hospitality OPERA 5 Property Services. It allows an unauthenticated attacker with network access to compromise the system, potentially leading to a full takeover.

How can an attacker exploit CVE-2026-34311 in Oracle Hospitality OPERA 5 Property Services?

An unauthenticated attacker can exploit this vulnerability by using network access via HTTP. Successful exploitation enables the attacker to take over Oracle Hospitality OPERA 5 Property Services.

What is the impact of CVE-2026-34311 on Oracle Hospitality OPERA 5 Property Services?

Successful exploitation of CVE-2026-34311 can result in a complete takeover of Oracle Hospitality OPERA 5 Property Services. This vulnerability has a CVSS 3.1 Base Score of 9.8, indicating critical impacts on confidentiality, integrity, and availability.

What are the recommended steps to address CVE-2026-34311 in Oracle Hospitality OPERA 5 Property Services?

Organizations should identify all affected instances of Oracle Hospitality OPERA 5 Property Services, reduce exposure or isolate the risk, and then apply fixes, verify the remediation, and monitor the system. Oracle has released security alerts regarding this vulnerability.

References