Description
Vulnerability in the Oracle Hospitality OPERA 5 Property Services product of Oracle Hospitality Applications (component: Opera Servlet). Supported versions that are affected are 5.6.28.0-5.6.28.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Hospitality OPERA 5 Property Services. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of Oracle Hospitality OPERA 5 Property Services. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
Published: 2026-08-18
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The flaw lies in the Opera Servlet component of Oracle Hospitality OPERA 5 Property Services, allowing an unauthenticated attacker to send HTTP requests that are processed as legitimate interactions. When a second party assists by providing human interaction, the attacker can then compromise the application, leading to full system takeover and affecting confidentiality, integrity, and availability. This weakness aligns with CWE-284, Authorization.

Affected Systems

Oracle Hospitality OPERA 5 Property Services, versions 5.6.28.0 through 5.6.28.1, from Oracle Hospitality Applications.

Risk and Exploitability

The CVSS base score of 8.8 indicates a high severity. Exploit requires only network connectivity to the exposed HTTP interface and no authentication, though a user interaction step remains necessary. The EPSS score is less than 1%, suggesting low exploitation probability, and the vulnerability is not yet listed in CISA’s KEV catalog. Nonetheless, the high CVSS and potential for full takeover make this a serious risk for environments that expose the service to untrusted networks.

Generated by OpenCVE AI on August 21, 2026 at 01:59 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the official Oracle patch or upgrade to a version newer than 5.6.28.1
  • Restrict network access to the Opera Servlet by configuring firewalls or VPNs to limit traffic to trusted hosts or IP ranges
  • Enforce authentication and consider disabling unused HTTP endpoints or services on the appliance
  • Enable detailed logging and monitor for suspicious HTTP requests to detect attempts to exploit the flaw

Generated by OpenCVE AI on August 21, 2026 at 01:59 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Fri, 04 Sep 2026 18:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:oracle:hospitality_opera_5_property_services:5.6.28.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:hospitality_opera_5_property_services:5.6.28.1:*:*:*:*:*:*:*

Fri, 21 Aug 2026 02:15:00 +0000

Type Values Removed Values Added
Title Unauthenticated HTTP Attack Enables System Takeover in Oracle Hospitality OPERA 5 Property Services

Thu, 20 Aug 2026 19:00:00 +0000

Type Values Removed Values Added
Title Unauthenticated HTTP Exploit Enables Full System Takeover of Oracle Hospitality OPERA 5 Property Services

Thu, 20 Aug 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Thu, 20 Aug 2026 07:15:00 +0000

Type Values Removed Values Added
Title Unauthenticated HTTP Exploit Enables Full System Takeover of Oracle Hospitality OPERA 5 Property Services
Weaknesses CWE-284

Wed, 19 Aug 2026 21:00:00 +0000

Type Values Removed Values Added
Title Unauthenticated Access to Oracle Hospitality OPERA 5 Service Enables System Takeover
Weaknesses CWE-284

Wed, 19 Aug 2026 06:15:00 +0000

Type Values Removed Values Added
Title Unauthenticated Access to Oracle Hospitality OPERA 5 Service Enables System Takeover
Weaknesses CWE-284

Tue, 18 Aug 2026 21:15:00 +0000

Type Values Removed Values Added
Description Vulnerability in the Oracle Hospitality OPERA 5 Property Services product of Oracle Hospitality Applications (component: Opera Servlet). Supported versions that are affected are 5.6.28.0-5.6.28.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Hospitality OPERA 5 Property Services. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in takeover of Oracle Hospitality OPERA 5 Property Services. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
First Time appeared Oracle
Oracle hospitality Opera 5 Property Services
CPEs cpe:2.3:a:oracle:hospitality_opera_5_property_services:*:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle hospitality Opera 5 Property Services
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

Subscriptions

Oracle Hospitality Opera 5 Property Services
cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-08-20T17:59:59.017Z

Reserved: 2026-08-04T22:06:34.617Z

Link: CVE-2026-71106

cve-icon Vulnrichment

Updated: 2026-08-20T17:51:25.616Z

cve-icon NVD

Status : Analyzed

Published: 2026-08-18T21:18:10.943

Modified: 2026-09-04T17:54:27.550

Link: CVE-2026-71106

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-21T02:00:05Z

Weaknesses