Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Oracle confirms easy HTTP exploitation by a low-privileged attacker with no user interaction yielding full takeover, so AV:N/AC:L/PR:L/UI:N and C:H/I:H/A:H.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
2DescriptionCVE.org
Vulnerability in the Oracle Platform Security for Java product of Oracle Fusion Middleware (component: Centralized Thirdparty Jars). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.0.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Platform Security for Java. Successful attacks of this vulnerability can result in takeover of Oracle Platform Security for Java. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
AnalysisAI
Takeover of Oracle Platform Security for Java (OPSS) is possible where a low-privileged attacker with HTTP network access can fully compromise the confidentiality, integrity, and availability of the service. The flaw resides in the Centralized Thirdparty Jars component and affects Oracle Fusion Middleware releases 12.2.1.4.0 and 14.1.2.0.0. It carries a CVSS 3.1 base score of 8.8 and was disclosed in the Oracle Critical Patch Update of July 2026; no public exploit identified at time of analysis.
Technical ContextAI
Oracle Platform Security for Java (OPSS) is the core security framework underpinning Oracle Fusion Middleware and WebLogic-based deployments, providing authentication, authorization, credential store, keystore, and audit services to Java EE and ADF applications. The vulnerable element is the 'Centralized Thirdparty Jars' component, which manages the shared bundled third-party libraries used across the middleware stack - a common vector for deserialization, injection, or vulnerable-dependency issues in Java stacks. Oracle did not assign a CWE (listed as N/A) and does not publish root-cause detail in its CPU advisories, so the precise weakness class cannot be confirmed from available data. The affected CPE is cpe:2.3:a:oracle_corporation:oracle_platform_security_for_java, spanning the 12.2.1.4.0 and 14.1.2.0.0 middleware trains.
RemediationAI
Apply the fixes from the Oracle Critical Patch Update of July 2026 (https://www.oracle.com/security-alerts/cpujul2026.html) to the affected 12.2.1.4.0 and 14.1.2.0.0 middleware installations; this is patch available per vendor advisory, as Oracle CPUs distribute cumulative bundle patches rather than a single named fix version, so consult the advisory for the exact patch number for your platform. Ensure the underlying Fusion Middleware and WebLogic homes are patched, not just deployed applications, since OPSS is a base library. Until patching is complete, reduce exposure by restricting HTTP access to the affected middleware management and application endpoints to trusted networks or via a reverse proxy/WAF, and tighten the privileges of the low-level accounts an attacker would leverage (the vector requires PR:L), accepting that network restrictions may disrupt legitimate integrations that depend on those endpoints. No vendor-supplied standalone workaround is documented, so patching is the only confirmed remediation.
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View allSame technique Privilege Escalation
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-47848
GHSA-4gp2-hc93-r36x