CVE-2026-34311

Critical

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).

SeverityCritical
CVSS9.8
Exploit probability—
ProductOracle Hospitality Opera 5 Property Services
PublishedMay 28, 2026
First seenMay 28, 2026

How to fix

Affected products

ProductAffected versionsFixed in
oracle hospitality_opera_5_property_services5.6.19.24, 5.6.22, 5.6.25.19, 5.6.27.6, 5.6.28—

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