Description
Vulnerability in Oracle APEX (component: General). Supported versions that are affected are 24.1.0-24.1.21, 24.2.0-24.2.20 and 26.1.0-26.1.4. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTPS to compromise Oracle APEX. Successful attacks of this vulnerability can result in takeover of Oracle APEX. 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).
Published: 2026-10-20
Score: 9.8 Critical
EPSS: n/a
KEV: No
Impact: Compromise of Oracle APEX via unauthenticated HTTPS access
Action: Immediate Patch
AI Analysis

Impact

An unauthenticated attacker who can reach Oracle APEX over HTTPS can exploit a flaw that allows full takeover of the application. The vulnerability directly impacts confidentiality, integrity, and availability, giving the attacker complete control over the affected APEX instance.

Affected Systems

The affected products are Oracle APEX in the following release ranges: 24.1.0 through 24.1.21, 24.2.0 through 24.2.20, and 26.1.0 through 26.1.4.

Risk and Exploitability

The CVSS score of 9.8 classifies this flaw as critical, and it can be exploited over the network without authentication or additional privileges. While an EPSS score is not available, the severity remains high, and the flaw is not currently listed in CISA's KEV catalog. A likely attack path involves an attacker sending a crafted HTTPS request to a vulnerable APEX instance, bypassing authentication controls and achieving complete takeover.

Generated by OpenCVE AI on October 21, 2026 at 05:29 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update Oracle APEX to the latest available version beyond those listed as affected
  • If a patch cannot be applied immediately, restrict network access to the APEX instance by configuring firewall rules or an access control list to allow only trusted IP addresses
  • Monitor application and network logs for suspicious activity that may indicate an attempt to exploit the vulnerability

Generated by OpenCVE AI on October 21, 2026 at 05:29 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Wed, 21 Oct 2026 05:45:00 +0000

Type Values Removed Values Added
Title Unauthenticated HTTPS Access Leading to Complete Takeover of Oracle APEX
Weaknesses CWE-285

Tue, 20 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Description Vulnerability in Oracle APEX (component: General). Supported versions that are affected are 24.1.0-24.1.21, 24.2.0-24.2.20 and 26.1.0-26.1.4. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTPS to compromise Oracle APEX. Successful attacks of this vulnerability can result in takeover of Oracle APEX. 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).
First Time appeared Oracle
Oracle apex
CPEs cpe:2.3:a:oracle:apex:*:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle apex
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Subscriptions

Oracle Apex
cve-icon MITRE

Status: PUBLISHED

Assigner: oracle

Published:

Updated: 2026-10-20T21:21:20.206Z

Reserved: 2026-09-28T15:40:09.489Z

Link: CVE-2026-101521

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-20T22:18:01.470

Modified: 2026-10-20T22:18:01.470

Link: CVE-2026-101521

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-21T05:30:13Z

Weaknesses