Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Network-reachable authentication bypass with no privileges or interaction (AV:N/AC:L/PR:N/UI:N) yields full data read and tamper (C:H/I:H) but no availability impact (A:N).
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 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 TLS to compromise Oracle Coherence. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Coherence accessible data as well as unauthorized access to critical data or complete access to all Oracle Coherence 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
Data compromise in Oracle Coherence (Oracle Fusion Middleware Core component) lets an unauthenticated attacker with network access via TLS read, create, delete, or modify all Coherence-accessible data. Oracle rates it 9.1 (CVSS 3.1) with high confidentiality and integrity impact but no availability impact, and the intelligence tags flag it as an authentication bypass. There is no public exploit identified at time of analysis and it is not listed in CISA KEV.
Technical ContextAI
Oracle Coherence is an in-memory data grid and distributed caching platform embedded across Oracle Fusion Middleware and WebLogic-based deployments, used to store and cluster application state and 'critical data' across nodes. The flaw sits in the Core component and, per the supplied tags, behaves as an authentication bypass: an attacker reaching the Coherence service over TLS is granted read/write access to grid data without valid credentials. No CWE was assigned in the source data, but the Authentication Bypass tag places the root cause in the CWE-287/CWE-306 (improper/missing authentication) class rather than a memory-safety or injection bug. The CPE cpe:2.3:a:oracle_corporation:oracle_coherence:*:*:*:*:*:*:*:* covers the Coherence product generically without version pinning in the CPE itself.
RemediationAI
Apply the fixes from the Oracle Critical Patch Update of July 2026 (https://www.oracle.com/security-alerts/cpujul2026.html) for your Coherence release train - 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 or 15.1.1.0.0; Oracle does not publish a single standalone fixed version number in the supplied data, so use the CPU-mapped patch for your installed version (Patch available per vendor advisory - exact fixed build to be taken from the CPU patch matrix). Until patched, reduce exposure by restricting network access to Coherence cluster and management/extend (TCP proxy) ports to trusted hosts only via firewall/security-group rules, and ensure Coherence is not reachable from untrusted or internet-facing networks; where supported, enforce TLS mutual authentication and Coherence security (identity/authorization, e.g. the security-framework and client authentication) on Extend and cluster communication. The trade-off is that tightening authentication and locking down ports can break legitimate clients or cross-datacenter clustering, so stage the changes and validate client connectivity before enforcing broadly.
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Same weakness CWE-284 – Improper Access Control
View allSame technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-46682
GHSA-xrh4-w2q7-7hwc