Improper authentication in Oracle Access Manager via SAML
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-287.
Summary
Oracle Access Manager in Oracle Fusion Middleware is affected in supported versions 12.2.1.4.0 and 14.1.2.0.0. The Authentication Engine component has improper authentication (CWE-287). An unauthenticated attacker with network access can use SAML to compromise Oracle Access Manager, and successful attacks can result in its takeover. Oracle rates the attack as difficult to exploit.
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. Difficult to exploit vulnerability allows unauthenticated attacker with network access via SAML to compromise Oracle Access Manager. Successful attacks of this vulnerability can result in takeover of Oracle Access Manager. CVSS 3.1 Base Score 8.1 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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-2026-77116 Improper access control in Oracle Access Manager authenticationPriority MEDIUM 43
Timeline
- 2026-10-21 Threatist record created from CVE-2026-83409
- 2026-10-21 Alias added: GHSA-qpv5-9mqx-9v34
- 2026-10-22 Priority changed: MEDIUM → LOW
- 2026-10-27 Weakness changed · CISA ADP
- 2026-10-27 CISA SSVC decision points changed
References
Advisory 1
More Oracle vulnerabilities
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- 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-2026-83409 · CVE Program
- CVE-2026-83409 · NVD
- FIRST EPSS
- GHSA-qpv5-9mqx-9v34 · 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