Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessObtain low-privileged local host session
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DeliveryAccess Trace File Analyzer component
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ExploitTrigger integrity/availability exploit
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ExecutionCorrupt or delete critical AHF data
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PersistCrash AHF process
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ImpactCascade disruption to dependent Oracle products
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 an authenticated local logon session on the infrastructure host where Oracle Autonomous Health Framework is installed and running - remote network-based attack is not possible given AV:L. The attacker must hold a low-privileged OS account (PR:L); unauthenticated or anonymous access is insufficient, but no administrative or database-privileged account is needed. No user interaction from a higher-privileged user is required once the local session is established. Oracle explicitly describes the vulnerability as 'easily exploitable,' indicating no complex chaining, specific timing, or race condition is needed beyond baseline local access. Exploitation is limited to hosts running one of the five confirmed affected version points (26-26.1.0, 26.2.0, 26.3.1, 26.5.0, 26.5.2). No evidence of a non-default configuration requirement is stated in the description. |
| Impact | The vendor-confirmed CVSS 3.1 score of 8.4 (High) is driven by low attack complexity, low privilege requirement, no user interaction, and a scope change that amplifies impact beyond the primary component - factors that collectively raise the score despite the local-only attack vector. The local attack vector (AV:L) is the primary real-world constraint: an attacker must already hold an authenticated session on the host running AHF, meaning this vulnerability functions as a post-compromise escalation tool or insider threat vector rather than an initial access mechanism. No EPSS score was available in the provided intelligence, limiting probabilistic exploitation assessment. No CISA KEV listing is present and no POC exploit code has been identified, both of which modestly reduce urgency relative to the raw CVSS score. However, the scope change and the explicit statement that additional Oracle products may be significantly impacted elevates the blast radius concern in Oracle-dense environments - a single compromised low-privilege account on a database host could cascade to corrupt diagnostic data across multiple Oracle services. Overall assessment: real but bounded risk, most relevant to organizations with Oracle infrastructure where insider threats or post-breach lateral movement are concerns. |
| Exploit ScenarioDerived | A low-privileged OS account holder on a host running Oracle AHF 26.x - such as an application service account or a compromised database user session - interacts with the Trace File Analyzer component in a manner that triggers the vulnerability without requiring any elevated credentials or additional user interaction. Exploitation results in unauthorized modification or deletion of critical data accessible to AHF and may cause a complete crash of the framework, with the scope change potentially disrupting other Oracle services relying on AHF diagnostic output. No public exploit code exists at time of analysis, but Oracle characterizes the issue as 'easily exploitable' once local access is in hand. |
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Alert meAnalysisAIv1 – Aug 19, 2026
Local privilege escalation and denial-of-service in Oracle Autonomous Health Framework's Trace File Analyzer component affects versions 26 through 26.5.2, enabling low-privileged infrastructure users to corrupt or destroy critical data and crash the framework with scope change to dependent Oracle products. The CVSS 3.1 score of 8.4 reflects ease of exploitation once local access is obtained, with no user interaction required. No public exploit or CISA KEV listing has been identified at time of analysis; this disclosure originates from Oracle's Critical Security Patch Update for August 2026.
RemediationAI
Apply Oracle's Critical Security Patch Update for August 2026 as the primary remediation, published at https://www.oracle.com/security-alerts/cspuaug2026.html. The exact patched target version number is not confirmed in the available intelligence - organizations must consult the Oracle CPU advisory directly to identify the correct upgrade target before applying. As a compensating control prior to patching, restrict local logon access to infrastructure hosts running AHF to only necessary administrative accounts, reducing the pool of low-privileged users who could reach the vulnerable Trace File Analyzer code path; note this may limit operational access for database administrators using AHF diagnostics. Additionally, enabling host-level file integrity monitoring on AHF and TFA working directories can provide detection coverage for unauthorized data modification or deletion activity indicative of exploitation. No vendor-published workaround to disable the affected TFA functionality while preserving other AHF capabilities has been identified in available data.
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 Autonomous Health Framework (AHF) is a diagnostic and monitoring toolkit deployed in Oracle database and cloud infrastructure environments; the Trace File Analyzer (TFA) subcomponent collects and analyzes diagnostic trace data from Oracle products. The CVSS vector (AV:L/AC:L/PR:L/UI:N/S:C) indicates the vulnerability lies within a locally accessible code path in TFA, reachable by any low-privileged OS account on the hosting infrastructure. The scope change (S:C) is particularly significant: it signals that successful exploitation can extend beyond the AHF process boundary, potentially corrupting diagnostic artifacts or causing cascading failures in other Oracle services that depend on AHF health data. No CWE identifier was assigned by Oracle, leaving the precise root-cause class - whether path traversal, improper privilege management, race condition, or unsafe file operations in trace log handling - unconfirmed from available data. All five version points disclosed (26-26.1.0, 26.2.0, 26.3.1, 26.5.0, 26.5.2) are listed as affected.
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Severity by source
AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
Local access with low-privilege OS account required; scope change reflects cascade to dependent Oracle services; no confidentiality impact per description.
Primary rating from Vendor (oracle).
CVSS VectorVendor: oracle
DescriptionCVE.org
Vulnerability in Oracle Autonomous Health Framework (component: Trace File Analyzer). Supported versions that are affected are 26-26.1.0, 26.2.0, 26.3.1, 26.5.0 and 26.5.2. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Autonomous Health Framework executes to compromise Oracle Autonomous Health Framework. While the vulnerability is in Oracle Autonomous Health Framework, 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 Autonomous Health Framework accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Autonomous Health Framework. CVSS 3.1 Base Score 8.4 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H).
Executive ViewAI
Oracle Autonomous Health Framework's Trace File Analyzer (versions 26-26.5.2) contains a privilege escalation vulnerability enabling infrastructure users with local system access to corrupt critical monitoring data and crash the health framework, with potential impact to dependent Oracle products. This vulnerability directly threatens database observability and operational continuity without available vendor remediation.
No vendor-released patch identified at time of analysis. Interim mitigations: (1) Restrict local system access to infrastructure users with documented business requirements; (2) Deploy file integrity monitoring on Trace File Analyzer installation directories; (3) Enable and actively monitor privilege escalation and file system access audit logs; (4) Enforce operating system-level least-privilege permissions; (5) Isolate affected systems from lower-trust network segments where possible; (6) Establish alerting for unexpected privilege elevation or anomalous trace file access.
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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