Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Oracle states unauthenticated, easily exploitable HTTP access yielding full takeover, supporting AV:N/AC:L/PR:N/UI:N with high confidentiality, integrity, and availability impact.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
Lifecycle Timeline
2DescriptionCVE.org
Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 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 Coherence. Successful attacks of this vulnerability can result in takeover of Oracle Coherence. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
AnalysisAI
Full takeover of Oracle Coherence (Oracle Fusion Middleware, Core component) can be achieved by unauthenticated remote attackers sending crafted HTTP traffic, affecting versions 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0. Oracle rates this CVSS 9.8 with complete confidentiality, integrity, and availability loss, and describes it as 'easily exploitable,' meaning no authentication, user interaction, or special preconditions are required. No public exploit identified at time of analysis, and it is not currently listed in CISA KEV.
Technical ContextAI
Oracle Coherence is an in-memory data grid and distributed caching platform embedded within many Oracle Fusion Middleware and WebLogic-based deployments, used for clustering, session replication, and low-latency data access across application tiers. The flaw resides in the Core component and is reachable over HTTP, consistent with Coherence's management/extend proxy and REST-style interfaces that can be exposed on network-facing ports. No CWE was assigned in the source data, so the exact root-cause class (e.g., deserialization, authentication bypass, or injection) cannot be confirmed; however, Oracle's own tagging includes 'Information Disclosure,' while the description states the outcome is full product takeover, indicating a weakness that escalates beyond mere data exposure to complete control. The single affected CPE is cpe:2.3:a:oracle_corporation:oracle_coherence:*:*:*:*:*:*:*:*.
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; consult the CPU patch matrix for the exact patched build corresponding to your 14.1.1.0.0, 14.1.2.0.0, or 15.1.1.0.0 installation, as Oracle distributes these as CPU patch bundles rather than a single named release version. Until patching is complete, reduce exposure by restricting network access to Coherence Extend proxy and management/HTTP listener ports so they are reachable only from trusted application-tier hosts, placing Coherence clusters on isolated management VLANs behind firewalls, and disabling any internet- or DMZ-facing HTTP endpoints that are not operationally required; note these network controls can disrupt legitimate cross-tier clustering or client Extend connectivity and must be validated against your topology. Enforcing authentication/TLS on Coherence Extend and management interfaces further limits reachability but does not substitute for the vendor patch.
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-46647
GHSA-9h8h-g8x2-68j9