Oracle · HTTP Server and Oracle Weblogic Server Proxy Plug-in
CVE-2026-21962
Oracle HTTP Server and Oracle Weblogic Server Proxy Plug-in Improper Access Control Vulnerability
What it is
Vulnerability in the Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in product of Oracle Fusion Middleware (component: Weblogic Server Proxy Plug-in for Apache HTTP Server, Weblogic Server Proxy Plug-in for IIS). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in. While the vulnerability is in Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in accessible data as well as unauthorized access to critical data or complete access to all Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in accessible data. Note: Affected version for Weblogic Server Proxy Plug-in for IIS is 12.2.1.4.0 only. CVSS 3.1 Base Score 10.0 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N).
CISA: Oracle HTTP Server and Oracle Weblogic Server Proxy Plug-in contain an improper access control vulnerability that can result in unauthorized creation, deletion or modification access to critical data as well as unauthorized access to critical data or complete access to all Oracle HTTP Server and Oracle Weblogic Server Proxy Plug-in accessible data.
What to do
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Deadline for US federal agencies: August 27, 2026
More exploited flaws from Oracle
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Jul 15, 2026 | Improper Privilege Management | E-Business Suite | Critical 9.8 | 12% |
| Jun 12, 2026 | PeopleSoft Enterprise PeopleTools Missing Authentication for Critical Function | PeopleSoft Enterprise PeopleTools | Critical 9.8 | 97% |
| Jun 1, 2026 | Unspecified | WebLogic Server | High 7.5 | 74% |
| Nov 21, 2025 | Missing Authentication for Critical Function | Fusion Middleware | Critical 9.8 | 89% |
| Oct 20, 2025 | Server-Side Request Forgery (SSRF) | E-Business Suite | High 7.5 | 96% |
| Oct 6, 2025 | Unspecified | E-Business Suite | Critical 9.8 | 99.7% |
| Feb 24, 2025 | Deserialization | Agile Product Lifecycle Management (PLM) | High 8.8 | 3.9% |
| Jan 7, 2025 | Unspecified | WebLogic Server | Critical 9.8 | 95% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.