Improper access control in Oracle Access Manager authentication
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-284.
Summary
Oracle Access Manager of Oracle Fusion Middleware, in the Authentication Engine component, is affected in versions 12.2.1.4.0 and 14.1.2.0.0. An improper access control flaw (CWE-284) lets an unauthenticated remote attacker over HTTP gain unauthorized access to data, modify some data, and partly disrupt the service. CISA does not list it in KEV, and the references contain no exploit link.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
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 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Access Manager. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Access Manager accessible data as well as unauthorized update, insert or delete access to some of Oracle Access Manager accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Access Manager. CVSS 3.1 Base Score 8.6 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L).
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for Oracle Access Manager.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Oracle Access Manager — oracle.com/security-alerts/cpuoct2026.html
6 records Highest priority Priority MEDIUM 4 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2026-77128 Oracle Access Manager flaw allows unauthenticated SAML takeoverPriority MEDIUM 49
- TI-2026-77178 Oracle Access Manager flaw exposes data to unauthenticated attackersPriority MEDIUM 43
- TI-2026-77118 Improper authentication in Oracle Access Manager lets attackers change dataPriority MEDIUM 40
Timeline
- 2026-10-21 Threatist record created from CVE-2026-83407
- 2026-10-21 Alias added: GHSA-h5pr-6363-c2vw
- 2026-10-22 Priority changed: MEDIUM → LOW
- 2026-10-27 Weakness changed · CISA ADP
- 2026-10-27 CISA SSVC decision points changed
- 2026-10-27 Priority changed: LOW → MEDIUM
References
Advisory 1
More Oracle vulnerabilities
- TI-2026-34425 Improper privilege management in Oracle Payments KEVCVSS 3.1CRITICAL 9.8
- TI-2026-27421 Missing authentication in Oracle PeopleSoft Enterprise PeopleTools KEVCVSS 3.1CRITICAL 9.8
- TI-2026-17661 Improper access control in Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in KEVCVSS 3.1CRITICAL 10.0
- TI-2025-38252 Improper authentication in Oracle Concurrent Processing KEVCVSS 3.1CRITICAL 9.8
- TI-2025-38151 Missing authentication in Oracle Identity Manager KEVCVSS 3.1CRITICAL 9.8
- TI-2022-07142 Code injection in Spring Framework KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-83407 · CVE Program
- CVE-2026-83407 · NVD
- FIRST EPSS
- GHSA-h5pr-6363-c2vw · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences