CVE-2026-83002

Authentication Engine Access Control Bypass Allowing System Takeover

Published Sep 15, 2026 CVSS 3.1 · 8.5 High EPSS < 1% KEV · Not listed
Description
Vulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: Authentication Engine). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Access Manager. While the vulnerability is in Oracle Access Manager, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle Access Manager. CVSS 3.1 Base Score 8.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H).

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Authentication Engine Access Control Bypass Allowing System Takeover
Type Values Removed Values Added
Title Oracle Access Manager Authentication Engine Bypass Enables System Takeover
Weaknesses CWE-863
Type Values Removed Values Added
Title Oracle Access Manager Authentication Engine Bypass Enables System Takeover
Weaknesses CWE-863
Type Values Removed Values Added
Weaknesses CWE-284
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Vulnerability in the Oracle Access Manager product of Oracle Fusion Middleware (component: Authentication Engine). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Access Manager. While the vulnerability is in Oracle Access Manager, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle Access Manager. CVSS 3.1 Base Score 8.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H).
First Time appeared Oracle
Oracle access Manager
CPEs cpe:2.3:a:oracle:access_manager:12.2.1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:access_manager:14.1.2.1.0:*:*:*:*:*:*:*
Vendors & Products Oracle
Oracle access Manager
References
Metrics cvssV3_1

{'score': 8.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
oracle
Published
Updated
Sep 16, 2026, 4:28 PM
Reserved
Aug 31, 2026, 3:40 PM
Status
Analyzed
Published
Sep 15, 2026, 8:18 PM
Modified
Sep 21, 2026, 6:07 PM