CVE-2026-34311

CVE-2026-34311

Critical · published May 29, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
45.2
In the wild
Unconfirmed
What it is

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).

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00549 · 45.2th percentile
Published
2026-05-29T01:16Z
Affected products (5)
ProductVersionsFixed in
oracle/hospitality_opera_5_property_servicesall versions—
oracle/hospitality_opera_5_property_servicesall versions—
oracle/hospitality_opera_5_property_servicesall versions—
oracle/hospitality_opera_5_property_servicesall versions—
oracle/hospitality_opera_5_property_servicesall versions—
References (1)
EPSS history
Timeline
  • 28 MAY 20:17Z
    Vulnerability in the Oracle Hospitality OPERA 5 Property Services product of Oracle Hospitality Applications (component: Opera)
    cvelistv5