CVE-2026-71106 Auth bypass in Oracle Hospitality OPERA 5 Property Services

High 8.8 Published Updated

Unauthenticated attackers can take over Oracle Hospitality OPERA 5 Property Services via HTTP with user interaction.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-71106?

CVE-2026-71106 is a high-severity authentication bypass vulnerability in Oracle Hospitality OPERA 5 Property Services, published on 18 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official 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).

Weakness: CWE-284

Which versions are affected by CVE-2026-71106?

It affects 1 product.

Products include Oracle Hospitality Opera 5 Property Services.

How do I fix CVE-2026-71106?

No fix has been published for CVE-2026-71106 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-71106 being exploited?

There is no known exploitation of CVE-2026-71106 in the wild and no public exploit code.

Sources

Also known as GHSA-4q2v-pgf7-p9wv.

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