Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Unauthenticated remote HTTP exploitation with no user interaction gives AV:N/AC:L/PR:N/UI:N; full data read/write yields C:H/I:H, with no service disruption so A:N.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
2DescriptionCVE.org
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle WebLogic Server accessible data as well as unauthorized access to critical data or complete access to all Oracle WebLogic Server accessible data. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).
AnalysisAI
Remote unauthenticated compromise of Oracle WebLogic Server (Fusion Middleware Core component) lets network attackers read, create, delete, or modify any server-accessible data over HTTP. Tagged as an authentication bypass and scored CVSS 3.1 9.1, it affects supported versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0 and was disclosed in Oracle's July 2026 Critical Patch Update. There is no public exploit identified at time of analysis and it is not in CISA KEV, but the trivial exploitability (AC:L/PR:N/UI:N) makes it a high-priority patch for internet-facing deployments.
Technical ContextAI
Oracle WebLogic Server is a Java EE/Jakarta EE application server that is a core runtime for Oracle Fusion Middleware and a common backend for enterprise web and integration workloads. The flaw resides in the Core component and is classified in the intelligence tags as an Authentication Bypass, meaning an attacker can reach privileged functionality without valid credentials - historically WebLogic Core/authentication issues have stemmed from insecure deserialization, IIOP/T3 protocol handling, or request-routing/authorization filter bypasses, though Oracle does not publish an exact CWE for this entry (CWE listed as N/A). The single CPE, cpe:2.3:a:oracle_corporation:oracle_weblogic_server, confirms the affected surface is the WebLogic Server product itself rather than a bundled library. Because exploitation is over HTTP against the network-facing management/application interfaces, any WebLogic instance whose HTTP listener is reachable is within scope.
RemediationAI
Apply the fixes delivered in the Oracle Critical Patch Update of July 2026 (https://www.oracle.com/security-alerts/cpujul2026.html); patch available per vendor advisory - Oracle ships these as version-specific Patch Set Updates/bundle patches for 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0, so select the CPU bundle matching your exact release rather than an invented version number. Until patched, reduce exposure by removing the WebLogic HTTP/administration listeners from the public internet and restricting access to trusted management networks or a VPN, and place the server behind a WAF or reverse proxy that can filter anomalous requests to the affected endpoints; note that network restrictions may break legitimate remote administration or federated integrations, and WAF rules for an undisclosed vector are only a partial, signature-dependent stopgap. Because the issue is an authentication bypass in the Core component, disabling optional application features is unlikely to fully close it - prioritize the vendor patch.
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Same weakness CWE-400 – Uncontrolled Resource Consumption
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-46614
GHSA-jpjp-wq38-65mq