Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Composer). (CVE-2026-83043)
A critical vulnerability (CVE-2026-83043) exists in Oracle WebCenter Portal (component: Composer) versions 12.2.1.4.0 and 14.1.2.0.0. This vulnerability allows an unauthenticated attacker with network access via HTTP to compromise the product, requiring user interaction from a third party. Successful exploitation can lead to full takeover of Oracle WebCenter Portal and may impact additional products. The vulnerability has a CVSS 3.1 base score of 9.6, indicating high confidentiality, integrity, and availability impacts. Oracle has released security patches addressing this and many other vulnerabilities in their September 2026 Critical Security Patch Update. Customers are strongly advised to apply these patches promptly to mitigate the risk.
AI Analysis
Technical Summary
CVE-2026-83043 is a critical vulnerability in Oracle WebCenter Portal's Composer component affecting versions 12.2.1.4.0 and 14.1.2.0.0. It allows unauthenticated remote attackers to compromise the system via HTTP, requiring user interaction from a third party. The vulnerability impacts confidentiality, integrity, and availability, with a CVSS 3.1 score of 9.6. Oracle's September 2026 Critical Security Patch Update includes patches for this vulnerability among others. The advisory emphasizes the importance of applying patches without delay to prevent exploitation.
Potential Impact
Successful exploitation of this vulnerability can result in complete takeover of Oracle WebCenter Portal, affecting confidentiality, integrity, and availability of the system. The vulnerability also has a scope change, meaning it may impact additional Oracle products beyond WebCenter Portal. The CVSS score of 9.6 reflects critical severity with network attack vector, low attack complexity, no privileges required, and user interaction needed.
Mitigation Recommendations
Oracle has released security patches for this vulnerability as part of the September 2026 Critical Security Patch Update. Customers should apply the relevant patches for Oracle WebCenter Portal versions 12.2.1.4.0 and 14.1.2.0.0 promptly. Oracle strongly recommends remaining on actively supported versions and applying security patches without delay to mitigate this and other vulnerabilities. No alternative mitigations or workarounds are specified in the advisory.
Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Composer). (CVE-2026-83043)
Description
A critical vulnerability (CVE-2026-83043) exists in Oracle WebCenter Portal (component: Composer) versions 12.2.1.4.0 and 14.1.2.0.0. This vulnerability allows an unauthenticated attacker with network access via HTTP to compromise the product, requiring user interaction from a third party. Successful exploitation can lead to full takeover of Oracle WebCenter Portal and may impact additional products. The vulnerability has a CVSS 3.1 base score of 9.6, indicating high confidentiality, integrity, and availability impacts. Oracle has released security patches addressing this and many other vulnerabilities in their September 2026 Critical Security Patch Update. Customers are strongly advised to apply these patches promptly to mitigate the risk.
CVSS v3.1
Score 9.6critical
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-83043 is a critical vulnerability in Oracle WebCenter Portal's Composer component affecting versions 12.2.1.4.0 and 14.1.2.0.0. It allows unauthenticated remote attackers to compromise the system via HTTP, requiring user interaction from a third party. The vulnerability impacts confidentiality, integrity, and availability, with a CVSS 3.1 score of 9.6. Oracle's September 2026 Critical Security Patch Update includes patches for this vulnerability among others. The advisory emphasizes the importance of applying patches without delay to prevent exploitation.
Potential Impact
Successful exploitation of this vulnerability can result in complete takeover of Oracle WebCenter Portal, affecting confidentiality, integrity, and availability of the system. The vulnerability also has a scope change, meaning it may impact additional Oracle products beyond WebCenter Portal. The CVSS score of 9.6 reflects critical severity with network attack vector, low attack complexity, no privileges required, and user interaction needed.
Mitigation Recommendations
Oracle has released security patches for this vulnerability as part of the September 2026 Critical Security Patch Update. Customers should apply the relevant patches for Oracle WebCenter Portal versions 12.2.1.4.0 and 14.1.2.0.0 promptly. Oracle strongly recommends remaining on actively supported versions and applying security patches without delay to mitigate this and other vulnerabilities. No alternative mitigations or workarounds are specified in the advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-9h2x-pf7f-4g3j
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-83043"]
- Database Specific Severity
- CRITICAL
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aaa07e355bf5e2cf5ea33c5
Added to database: 09/16/2026, 03:07:15 UTC
Last enriched: 09/16/2026, 04:38:40 UTC
Last updated: 09/16/2026, 04:38:40 UTC
Views: 1
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