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CVE-2026-91568

7.7, high

Vulnerability in the RDBMS component of Oracle Database Server

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
7.7, high high CVSS v3.1
EPSS, next 30 days
n/a
Exploitation
No public evidence
Published
20 Oct 2026yesterday

Description

Vulnerability in the RDBMS component of Oracle Database Server. Supported versions that are affected are 23.4.0-23.26.3. Easily exploitable vulnerability allows low privileged attacker having Create Session privilege with network access via Oracle Net to compromise RDBMS. While the vulnerability is in RDBMS, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all RDBMS accessible data. CVSS 3.1 Base Score 7.7 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N).

Details

Vendor
Oracle Corporation
Product
Oracle Database Server
Weakness
n/a
Status
Received
Updated
20 Oct 2026
Assigner
secalert_us@oracle.com

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

References 1

Advisories 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Oracle Corporation CVEs

Every Oracle Corporation CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-101420 Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: SQR) 9.6, critical
  • CVE-2026-101446 Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel CRM (component: Siebel Cloud Manager) 9.9, critical
  • CVE-2026-101484 Vulnerability in Oracle Secure Backup (component: Backup and Restore) 9.8, critical
  • CVE-2026-101499 Vulnerability in the Oracle WebCenter Sites product of Oracle Fusion Middleware (component: WebCenter Sites) 9.8, critical
  • CVE-2026-101501 Vulnerability in Oracle Trusted Answer Search (component: PLSQL package) 9.9, critical
  • CVE-2026-101503 Vulnerability in Oracle Trusted Answer Search (component: PLSQL package) 9.9, critical
  • CVE-2026-101521 Vulnerability in Oracle APEX (component: General) 9.8, critical
  • CVE-2026-101528 Vulnerability in the Oracle Enterprise Manager for Oracle Database product of Oracle Enterprise Manager (component: Data Guard Management) 9.9, critical

Beyond this page

Is CVE-2026-91568 in your network?

This page tells you how dangerous CVE-2026-91568 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2026-91568 comes with the devices to patch.

    Learn more about EXYS7600 OCELOT

  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

    Learn more about EXYS7950 KONDRA
Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 21 Oct 2026, not the live upstream state.