Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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ReconObtain valid low-privileged Hyperion HTTP account
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DeliveryEnumerate or probe Common Security HTTP endpoints
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ExploitCraft request satisfying high-complexity bypass conditions
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InstallBypass Common Security authentication or authorization check
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C2Gain complete read access to all Hyperion-accessible data
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ExecuteExploit scope change to access adjacent EPM modules
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ImpactExfiltrate financial or planning data or manipulate records
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Access control enforcement
MITRE ATT&CK
1 technique across 1 tactic: Defense Evasion The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Exploitation requires a valid low-privileged account within the Oracle Hyperion Infrastructure Technology platform (PR:L per CVSS vector); fully unauthenticated external attackers cannot exploit this vulnerability. Network connectivity to the Hyperion HTTP interface is required (AV:N). The AC:H metric explicitly indicates difficult exploitation - conditions beyond the attacker's direct control must be met, such as a specific Hyperion configuration state, session ordering, or internal processing condition; Oracle has not disclosed the precise triggering prerequisites in the public advisory. The vulnerability is limited to the Common Security component of version 11.2.25.0.000 specifically. Factors limiting real-world exploitation include: the mandatory low-privileged account precondition (restricting the threat to insiders or compromised credential holders), high attack complexity reducing the reliability of exploitation attempts, and the niche enterprise deployment footprint of Oracle Hyperion reducing the global scale of exposure. No user interaction is required once the attacker has access, meaning exploitation does not depend on social engineering a second party. |
| Impact | The CVSS 3.1 base score of 7.1 (High) must be contextualised against two moderating factors: AC:H indicates exploitation is difficult and requires conditions beyond the attacker's direct control, and PR:L means the attacker must already possess a valid low-privileged Hyperion account - eliminating fully unauthenticated threat vectors. These constraints meaningfully reduce the exploitable population compared to a PR:N/AC:L scenario. On the amplifying side, the C:H rating represents complete loss of confidentiality for all Hyperion-accessible data, and the S:C flag extends potential damage to interconnected EPM modules, making the blast radius considerably larger than a single-component flaw; even a mid-sized municipal IT team in boleslawiec running Oracle Hyperion for budget consolidation and financial reporting should treat this as urgent if version 11.2.25.0.000 remains unpatched. There is no CISA KEV listing and no identified public exploit code, which aligns with the AC:H rating and suggests that reliable exploitation currently requires non-trivial attacker research into the precise triggering conditions. The absence of any availability impact (A:N) reduces operational disruption risk, but the financial and compliance exposure from unauthorized bulk data read and partial data manipulation in an EPM system is significant. The CVSS vector is internally consistent with the description; no conflicts between stated attack vector and description language were identified. EPSS data was not provided in the source intelligence. |
| Exploit ScenarioDerived | A low-privileged Hyperion user - for example, a read-only financial report viewer or a service account with minimal entitlements - submits a specially crafted HTTP request to the Common Security component that triggers the authentication bypass logic, meeting the specific high-complexity conditions (AC:H) required to succeed. Upon exploitation, the attacker's session is granted unauthorized read access to the full scope of data within Oracle Hyperion Infrastructure Technology and gains partial write capability (insert, update, delete) against some of that data, with the scope change enabling lateral access to connected Hyperion EPM modules such as Financial Management or Planning. No public proof-of-concept code has been identified, indicating that exploitation currently requires independent attacker research to identify and reliably satisfy the precise triggering conditions. |
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Alert meAnalysisAIv1 – Aug 19, 2026
High-severity data disclosure and partial integrity compromise in Oracle Hyperion Infrastructure Technology 11.2.25.0.000 allows a low-privileged network attacker to gain complete unauthorized read access to all data accessible within the platform, with additional unauthorized insert, update, and delete capability against a subset of that data. The flaw resides in the Common Security component - the centralized authentication and authorization layer of the Hyperion EPM suite - and carries a CVSS scope-change indicator (S:C) confirming that successful exploitation can affect additional Hyperion products beyond the initially targeted component. No public exploit code has been identified and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog, though the cross-scope confidentiality and integrity impacts in a financial EPM context make it a meaningful business risk for affected organizations.
RemediationAI
The primary remediation is to apply Oracle's Critical Patch Update for August 2026, documented at https://www.oracle.com/security-alerts/cspuaug2026.html. Oracle delivers security fixes for Hyperion through its quarterly CPU process rather than standalone hotfixes; organizations should use Oracle's patch delivery tools (My Oracle Support) to obtain and apply the applicable patch set for version 11.2.25.0.000. An exact post-patch version string beyond the CPU cycle reference is not independently confirmed from available data. Where immediate patching is not feasible, enforce network perimeter controls to restrict HTTP access to the Hyperion Infrastructure Technology layer to known authorized client IP ranges only, noting this does not eliminate the vulnerability but reduces the exposed attack surface to internal actors. Review the Hyperion Common Security user registry and revoke or disable low-privileged accounts that do not require active access, reducing the pool of principals who could satisfy the PR:L precondition. Enable and monitor Hyperion audit logging for anomalous bulk data access events or unexpected data modification activity across EPM modules as a detective control. If the Hyperion deployment is internet-facing, treat isolation as an emergency control given the network (AV:N) attack vector.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Oracle Hyperion Infrastructure Technology is the foundational services layer of Oracle's Hyperion Enterprise Performance Management (EPM) suite, which supports financial consolidation, planning, reporting, and analysis workloads. The affected component, Common Security, provides centralized identity, authentication, session management, and authorization enforcement shared across all Hyperion modules including Financial Management, Planning, Essbase, and Reporting and Analysis. A vulnerability in this shared security layer is architecturally significant because a bypass propagates access control failures to all dependent modules - directly reflected by the CVSS S:C (scope change) flag. The CVSS vector (AV:N/AC:H/PR:L/UI:N) establishes that the flaw is reachable over HTTP without user interaction but requires a low-privileged account and specific non-trivial exploitation conditions. The vendor tag 'Authentication Bypass' points to a root cause in the CWE-287 (Improper Authentication) or CWE-306 (Missing Authentication for Critical Function) class, though Oracle has not published a formal CWE identifier for this CVE. The sole confirmed affected version is 11.2.25.0.000 per Oracle's August 2026 Critical Patch Update advisory.
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Severity by source
AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
Network HTTP access required with low-privilege account; high complexity for undisclosed conditions; scope change to adjacent Hyperion modules; no availability impact per description.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
DescriptionCVE.org
Vulnerability in the Oracle Hyperion Infrastructure Technology product of Oracle Hyperion (component: Common Security). The supported version that is affected is 11.2.25.0.000. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Hyperion Infrastructure Technology. While the vulnerability is in Oracle Hyperion Infrastructure Technology, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Hyperion Infrastructure Technology accessible data as well as unauthorized update, insert or delete access to some of Oracle Hyperion Infrastructure Technology accessible data. CVSS 3.1 Base Score 7.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N).
Executive ViewAI
A high-severity vulnerability in Oracle Hyperion Infrastructure Technology 11.2.25.0.000 exposes all sensitive financial planning data to unauthorized access and allows attackers to selectively modify records across the EPM platform. With no currently available patch and confirmed cross-product scope impact, affected organizations face immediate risk to the confidentiality and integrity of critical financial systems. This creates material business exposure for accurate financial reporting, audit compliance, and data security governance.
No vendor-released patch identified at time of analysis. Implement network isolation restricting Hyperion system access to trusted subnets via firewall and VPN controls; restrict access via IP-based whitelisting; require multi-factor authentication for all platform access; minimize the number of active user accounts with system access; enable comprehensive audit logging with real-time alerts for suspicious data access patterns; and deploy data loss prevention (DLP) tools configured to monitor and restrict bulk data exports and unauthorized modifications to financial records.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
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EUVD-2026-61526
GHSA-h7mf-wp4j-5v3j
NVD
CVE.org
EPSS
Exploit-DB