CVE-2026-60591 Missing authorization in Oracle Hospitality Simphony

Critical 9.1 Published 18 Aug 2026 Updated 20 Aug 2026

Unauthenticated attackers can modify or delete critical data and cause denial of service in Oracle Hospitality Simphony via HTTP.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-60591?

CVE-2026-60591 is a critical missing authorization vulnerability in Oracle Hospitality Simphony, published on 18 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Vulnerability in the Oracle Hospitality Simphony product of Oracle Food and Beverage Applications (component: POS). Supported versions that are affected are 19.8-19.8.5, 19.9-19.9.3 and 19.10-19.10.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Hospitality Simphony. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Hospitality Simphony accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Hospitality Simphony. CVSS 3.1 Base Score 9.1 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H).

Weakness: CWE-306

Which versions are affected by CVE-2026-60591?

It affects 1 product.

Products include Oracle Hospitality Simphony.

How do I fix CVE-2026-60591?

No fix has been published for CVE-2026-60591 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-60591 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-60591 exists.

Sources

Also known as GHSA-4hwm-h3wc-xrfj.