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Oracle Hyperion CVE-2026-70959

| EUVDEUVD-2026-61906 HIGH
Improper Access Control (CWE-284)
2026-08-18 secalert_us@oracle.com GHSA-jjjr-8ggg-435r
Oracle Authentication Bypass Hyperion Infrastructure Technology
8.1
CVSS 3.1 · Vendor: oracle
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Severity by source

Vendor (oracle) PRIMARY
8.1 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
vuln.today AI
8.1 HIGH

HTTP-accessible endpoint requires low-privileged credentials; high integrity and availability impacts with no confidentiality exposure match Oracle's described behavioral impact.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Aug 19, 2026 - 00:44 vuln.today
CVE Published
Aug 18, 2026 - 21:17 nvd
HIGH 8.1

DescriptionCVE.org

Vulnerability in the Oracle Hyperion Infrastructure Technology product of Oracle Hyperion (component: Installation and Configuration). The supported version that is affected is 11.2.25.0.000. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Hyperion Infrastructure Technology. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Hyperion Infrastructure Technology accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Hyperion Infrastructure Technology. CVSS 3.1 Base Score 8.1 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H).

AnalysisAI

Oracle Hyperion Infrastructure Technology version 11.2.25.0.000 exposes its Installation and Configuration component to unauthorized data manipulation and complete denial-of-service via HTTP by low-privileged authenticated network users. Exploitation allows an attacker to create, delete, or modify critical Hyperion EPM data and cause a full service hang or crash, directly threatening financial reporting and planning operations. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Vulnerability AssessmentAI

Exploitation Exploitation requires a valid low-privileged authenticated account on Oracle Hyperion Infrastructure Technology 11.2.25.0.000 (confirmed by PR:L in the CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H vector), combined with HTTP network access to the Installation and Configuration component. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 base score of 8.1 reflects a High-severity finding with a network attack vector, low complexity, and dual High impacts on integrity and availability. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Apply the Oracle August 2026 Critical Patch Update, which addresses CVE-2026-70959 for Oracle Hyperion Infrastructure Technology. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours, locate all Oracle Hyperion Infrastructure Technology 11.2.25.0.000 installations and review access controls to the Installation and Configuration component. …

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Same weakness CWE-284 – Improper Access Control

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CVE-2026-70959 vulnerability details – vuln.today
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