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CVE-2026-34311

Quick assessment

Affected
Oracle Corporation Oracle Hospitality OPERA 5 Property Services
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Oracle Hospitality OPERA 5 Property Services是美国甲骨文（Oracle）公司的一个基于Windows的用于处理支付卡付款的应用程序组件。 Oracle Hospitality OPERA 5 Property Services 5.6.19.24版本、5.6.22版本、5.6.25.19版本、5.6.27.6版本和5.6.28版本存在安全漏洞，该漏洞源于Opera组件问题，可能导致未经身份验证的攻击者通过HTTP网络访问，完全接管Oracle Hospitali

CVSS 9.8 · Critical EPSS 0.55% · P44

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 5

VendorProduct Version RangeStatus
Oracle Corporation Oracle Hospitality OPERA 5 Property Services 5.6.19.24 affected
5.6.22 affected
5.6.25.19 affected
5.6.27.6 affected
5.6.28 affected
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I. Basic Information for CVE-2026-34311

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Vulnerability in the Oracle Hospitality OPERA 5 Property Services product of Oracle Hospitality Applications (component: Opera). Supported versions that are affected are 5.6.19.24, 5.6.22, 5.6.25.19, 5.6.27.6 and 5.6.28. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Hospitality OPERA 5 Property Services. Successful attacks of this vulnerability can result in takeover of Oracle Hospitality OPERA 5 Property Services. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Oracle Hospitality OPERA 5 Property Services 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Oracle Hospitality OPERA 5 Property Services是美国甲骨文（Oracle）公司的一个基于Windows的用于处理支付卡付款的应用程序组件。 Oracle Hospitality OPERA 5 Property Services 5.6.19.24版本、5.6.22版本、5.6.25.19版本、5.6.27.6版本和5.6.28版本存在安全漏洞，该漏洞源于Opera组件问题，可能导致未经身份验证的攻击者通过HTTP网络访问，完全接管Oracle Hospitali
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Oracle Corporation Oracle Hospitality OPERA 5 Property Services 5.6.19.24 -

II. Public POCs for CVE-2026-34311

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III. Intelligence Information for CVE-2026-34311

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Vendor Advisories for CVE-2026-34311 (1)

Same Patch Batch · Oracle Corporation · 2026-05-28 · 26 CVEs total

CVE-2026-46840 10.0 CRITICAL Oracle REST Data Services 安全漏洞
CVE-2026-46839 9.9 CRITICAL Oracle REST Data Services 安全漏洞
CVE-2026-46775 9.9 CRITICAL Oracle REST Data Services 安全漏洞
CVE-2026-46822 9.9 CRITICAL Oracle iAssets 安全漏洞
CVE-2026-46824 9.9 CRITICAL Oracle Universal Work Queue 安全漏洞
CVE-2026-46817 9.8 CRITICAL Oracle Payments 安全漏洞
CVE-2026-46819 9.1 CRITICAL Oracle Internet Procurement Connector 安全漏洞
CVE-2026-46833 9.0 CRITICAL Oracle Database Server Net Service 安全漏洞
CVE-2026-46837 8.8 HIGH Oracle Flow Manufacturing 安全漏洞
CVE-2026-46827 8.8 HIGH Oracle Payroll 安全漏洞
CVE-2026-46826 8.8 HIGH Oracle Payroll 安全漏洞
CVE-2026-46820 8.5 HIGH Oracle Financials Common Modules 安全漏洞
CVE-2026-35277 8.1 HIGH Oracle REST Data Services 安全漏洞
CVE-2026-46828 8.1 HIGH Oracle Payroll 安全漏洞
CVE-2026-35266 7.9 HIGH Oracle REST Data Services 安全漏洞
CVE-2026-46823 7.7 HIGH Oracle Public Sector Financials (International) 安全漏洞
CVE-2026-46821 7.7 HIGH Oracle Financials Common Modules 安全漏洞
CVE-2026-46829 7.5 HIGH Oracle REST Data Services 安全漏洞
CVE-2026-46835 7.5 HIGH Oracle Database Server Net Service 安全漏洞
CVE-2026-46834 7.5 HIGH Oracle Database Server Net Service 安全漏洞

Showing top 20 of 26 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Oracle Hospitality OPERA 5 Property Services
Same vendor: Oracle Corporation

V. Comments for CVE-2026-34311

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