CVE-2026-70715: Oracle Autonomous Health Framework RCE Flaw

CVE-2026-70715 Overview

CVE-2026-70715 is a vulnerability in Oracle Autonomous Health Framework (AHF), specifically within the Trace File Analyzer component. An unauthenticated attacker with access to the physical communication segment attached to the hardware running AHF can compromise the framework. Successful exploitation results in complete takeover of Oracle Autonomous Health Framework, affecting confidentiality, integrity, and availability.

Oracle published the vulnerability on August 18, 2026, in its security alert bulletin. The flaw affects Trace File Analyzer versions 26-26.1.0, 26.2.0, 26.3.1, 26.5.0, and 26.5.2.

Critical Impact
An adjacent-network attacker without credentials can achieve full takeover of Oracle Autonomous Health Framework, compromising database health monitoring infrastructure.

Affected Products

Oracle Autonomous Health Framework (Trace File Analyzer) version 26-26.1.0
Oracle Autonomous Health Framework (Trace File Analyzer) versions 26.2.0 and 26.3.1
Oracle Autonomous Health Framework (Trace File Analyzer) versions 26.5.0 and 26.5.2

Discovery Timeline

2026-08-18 - CVE-2026-70715 published to NVD
2026-08-18 - Oracle publishes security alert covering the Trace File Analyzer defect
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-70715

Vulnerability Analysis

Oracle Autonomous Health Framework is a diagnostic collection and health monitoring suite for Oracle Database and Grid Infrastructure environments. The Trace File Analyzer (TFA) component collects, packages, and analyzes diagnostic data across cluster nodes. It typically runs with elevated privileges to access log files, trace directories, and system diagnostics on database hosts.

The vulnerability allows an unauthenticated adversary on the same physical network segment as the AHF host to compromise the framework. Because the attack requires no privileges and no user interaction, an attacker with a foothold on an adjacent segment such as a datacenter management VLAN or interconnect network can reach the exposed interface directly. Oracle's advisory characterizes the flaw as easily exploitable and confirms it enables takeover of the AHF instance.

A compromised AHF process affects the diagnostic control plane for Oracle Database clusters. Attackers can pivot from the framework into the underlying operating system, tamper with diagnostic archives to hide activity, or leverage AHF's cluster-wide reach to move laterally across database nodes.

Root Cause

Oracle has not disclosed the underlying weakness class, and no CWE identifier is assigned. The adjacent-network attack requirement combined with unauthenticated takeover suggests a flaw in a network-facing service or listener exposed by Trace File Analyzer, such as improper access control or authentication on an internal communication channel.

Attack Vector

Exploitation requires network access to the physical communication segment attached to the AHF host. This typically means the attacker is on the same layer-2 broadcast domain, VLAN, or private cluster interconnect. Remote exploitation across routed networks is not in scope for this vulnerability. The Exploit Prediction Scoring System (EPSS) score is 0.272%, and no public proof-of-concept has been observed at the time of publication.

Refer to the Oracle Security Alert for vendor-supplied technical details.

Detection Methods for CVE-2026-70715

Indicators of Compromise

Unexpected process spawns or shell invocations originating from the tfactl or AHF daemon process trees.
New or modified files in AHF repository directories such as /opt/oracle.ahf outside of scheduled diagnostic runs.
Outbound network connections from AHF service accounts to unfamiliar internal or external hosts.

Detection Strategies

Baseline AHF service network listeners and alert on new bindings or connections from adjacent-segment hosts not part of the cluster.
Enable OS-level auditing on AHF binaries and configuration files to detect tampering with the Trace File Analyzer runtime.
Correlate database host telemetry with switch and VLAN logs to identify lateral movement attempts from management networks.

Monitoring Recommendations

Forward AHF logs from /opt/oracle.ahf/data/repository and syslog to a central SIEM for retention and anomaly analysis.
Monitor privileged account activity on database hosts, focusing on the oracle and grid accounts that own AHF processes.
Track ARP tables and switch port MAC bindings on cluster interconnect and management VLANs to identify unauthorized devices.

How to Mitigate CVE-2026-70715

Immediate Actions Required

Apply the fixes from the Oracle August 2026 Critical Patch Update to all AHF installations running affected versions.
Inventory Oracle Database hosts and Grid Infrastructure nodes to confirm the Trace File Analyzer version deployed on each system.
Restrict layer-2 access to database management and interconnect segments using port security, private VLANs, and 802.1X.

Patch Information

Oracle addresses CVE-2026-70715 through the August 2026 security alert. Administrators should upgrade Oracle Autonomous Health Framework to a fixed release as identified in the Oracle Security Alert. Trace File Analyzer versions 26-26.1.0, 26.2.0, 26.3.1, 26.5.0, and 26.5.2 require remediation.

Workarounds

Isolate the AHF host on a dedicated, tightly controlled management segment with no unmanaged endpoints.
Disable or firewall unused AHF network listeners at the host level until patches are deployed.
Enforce host-based access control lists that permit AHF communication only between known cluster nodes.

bash

# Verify installed AHF version on each database host
tfactl version

# Restrict inbound traffic to AHF host from non-cluster peers (example iptables)
iptables -A INPUT -s <cluster_node_cidr> -j ACCEPT
iptables -A INPUT -p tcp --dport <ahf_port> -j DROP