CVE-2026-83189: Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle User Management. Successful attacks of this vulnerability can result in takeover of Oracle User Management. in Oracle Corporation Oracle User Management
CVE-2026-83189 is a high-severity vulnerability in Oracle User Management component of Oracle E-Business Suite versions 12.2.3 through 12.2.15. It allows a low privileged attacker with network access via HTTP to compromise Oracle User Management, potentially resulting in full takeover of the system. The vulnerability has a CVSS 3.1 base score of 8.8, indicating high impact on confidentiality, integrity, and availability. Oracle has addressed this vulnerability in its September 2026 Critical Security Patch Update, which includes targeted security fixes for affected products.
AI Analysis
Technical Summary
This vulnerability affects the Proxy User Delegation component of Oracle User Management in Oracle E-Business Suite versions 12.2.3 to 12.2.15. It is easily exploitable by an attacker with low privileges who has network access via HTTP. Successful exploitation can lead to complete compromise of Oracle User Management. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) reflects network attack vector, low attack complexity, low privileges required, no user interaction, unchanged scope, and high impact on confidentiality, integrity, and availability. Oracle has released a Critical Security Patch Update in September 2026 that includes fixes for this vulnerability among others.
Potential Impact
The vulnerability allows an attacker with low privileges and network access to fully compromise Oracle User Management, leading to potential takeover of the system. This impacts confidentiality, integrity, and availability of the affected product. No known exploits in the wild have been reported yet. The high CVSS score reflects the critical nature of the impact if exploited.
Mitigation Recommendations
Oracle has released a Critical Security Patch Update in September 2026 that addresses this vulnerability. Customers are strongly advised to apply the security patches promptly to remediate the issue. Oracle recommends remaining on actively-supported versions and applying security patches without delay to prevent exploitation. No alternative mitigations or workarounds are specified in the advisory.
CVE-2026-83189: Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle User Management. Successful attacks of this vulnerability can result in takeover of Oracle User Management. in Oracle Corporation Oracle User Management
Description
CVE-2026-83189 is a high-severity vulnerability in Oracle User Management component of Oracle E-Business Suite versions 12.2.3 through 12.2.15. It allows a low privileged attacker with network access via HTTP to compromise Oracle User Management, potentially resulting in full takeover of the system. The vulnerability has a CVSS 3.1 base score of 8.8, indicating high impact on confidentiality, integrity, and availability. Oracle has addressed this vulnerability in its September 2026 Critical Security Patch Update, which includes targeted security fixes for affected products.
CVSS v3.1
Score 8.8high
Affected software
Oracle Corporation
Oracle User Management
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects the Proxy User Delegation component of Oracle User Management in Oracle E-Business Suite versions 12.2.3 to 12.2.15. It is easily exploitable by an attacker with low privileges who has network access via HTTP. Successful exploitation can lead to complete compromise of Oracle User Management. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) reflects network attack vector, low attack complexity, low privileges required, no user interaction, unchanged scope, and high impact on confidentiality, integrity, and availability. Oracle has released a Critical Security Patch Update in September 2026 that includes fixes for this vulnerability among others.
Potential Impact
The vulnerability allows an attacker with low privileges and network access to fully compromise Oracle User Management, leading to potential takeover of the system. This impacts confidentiality, integrity, and availability of the affected product. No known exploits in the wild have been reported yet. The high CVSS score reflects the critical nature of the impact if exploited.
Mitigation Recommendations
Oracle has released a Critical Security Patch Update in September 2026 that addresses this vulnerability. Customers are strongly advised to apply the security patches promptly to remediate the issue. Oracle recommends remaining on actively-supported versions and applying security patches without delay to prevent exploitation. No alternative mitigations or workarounds are specified in the advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-08-31T15:40:57.345Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.oracle.com/security-alerts/cspusep2026.html","vendor":"Oracle"}]
Threat ID: 6aa9a82855bf5e2cf5538056
Added to database: 09/15/2026, 20:18:48 UTC
Last enriched: 09/15/2026, 22:50:43 UTC
Last updated: 09/15/2026, 22:50:43 UTC
Views: 3
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