Severity by source
AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
Local logon and an existing account give AV:L/PR:L; difficult non-deterministic exploitation needing separate victim action gives AC:H/UI:R; cross-product impact gives S:C with C:H/I:H and no availability effect.
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. Difficult to exploit vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Coherence executes to compromise Oracle Coherence. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Coherence, 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 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 7.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N).
AnalysisAI
Privilege escalation with scope change in Oracle Coherence (Oracle Fusion Middleware Core component) lets a low-privileged attacker with local logon access compromise the confidentiality and integrity of all Coherence-accessible data and impact additional products beyond Coherence itself. Oracle rates it CVSS 3.1 7.2, but the attack is hard to execute: it requires an existing account, high attack complexity, and human interaction from a separate victim. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, though the fix ships in Oracle's July 2026 Critical Patch Update.
Technical ContextAI
Oracle Coherence is Oracle's distributed in-memory data grid used within Fusion Middleware for caching, session state, and low-latency data access across clustered WebLogic/middleware tiers. The flaw resides in the Core component and, per the CVSS scope change (S:C), a successful compromise of Coherence can pivot to affect other products sharing the same security authority - consistent with Coherence's role as shared infrastructure across an application stack. Oracle assigned no CWE (CWE: N/A); the intelligence tag labels it 'Authentication Bypass,' but the CVSS vector's PR:L (low privileges required) indicates the attacker must already be authenticated to the infrastructure, so the tag should be treated cautiously rather than as a true pre-auth bypass.
RemediationAI
Apply the Oracle Critical Patch Update of July 2026 for the affected Coherence release train (12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, or 15.1.1.0.0); Patch available per vendor advisory at https://www.oracle.com/security-alerts/cpujul2026.html - no standalone fixed build number was published in the input, so consult that advisory for the exact patch bundle per version. Until patched, reduce the attack surface by tightly restricting local and interactive logon and account privileges on hosts where Coherence executes (the attack requires PR:L local access), and limit which low-privileged users can reach the Coherence process, since removing local footholds directly negates the AV:L vector; because exploitation also depends on UI:R, reinforce operational controls so administrators and users do not perform attacker-supplied actions. Trade-off: hardening local access and privilege separation may disrupt operational or automation accounts that legitimately run on the Coherence host, so validate service dependencies before restricting them.
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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-2026-46660
GHSA-mfjq-h763-hjrf