CVE-2026-70848: Oracle Hyperion Financial Management Info Leak

CVE-2026-70848 Overview

CVE-2026-70848 affects the Security component of Oracle Hyperion Financial Management version 11.2.25.0.000. An unauthenticated attacker with network access via HTTP can compromise the application under difficult exploitation conditions. Successful exploitation grants unauthorized read access to a subset of data accessible to Oracle Hyperion Financial Management.

The issue impacts confidentiality only. Integrity and availability are not affected. Oracle addressed this issue in the August 2026 Critical Patch Update.

Critical Impact
Unauthenticated network-based information disclosure exposing a subset of Oracle Hyperion Financial Management data.

Affected Products

Oracle Hyperion Financial Management 11.2.25.0.000
Oracle Hyperion (Security component)

Discovery Timeline

2026-08-18 - CVE-2026-70848 published to the National Vulnerability Database (NVD)
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-70848

Vulnerability Analysis

The vulnerability resides in the Security component of Oracle Hyperion Financial Management. The flaw allows an unauthenticated remote attacker to reach the application over HTTP and retrieve a limited subset of data. Oracle characterizes the exploitation as difficult, which reflects preconditions outside the attacker's direct control.

The impact is scoped to unauthorized read access. There is no reported ability to modify records, escalate privileges, or disrupt service availability. Because Hyperion Financial Management stores consolidated financial reporting data, even a limited disclosure can expose sensitive planning, close-cycle, or regulatory content.

Oracle has not published detailed root cause information. The August 2026 Critical Patch Update advisory contains the corrective guidance.

Root Cause

Oracle attributes the issue to the Security component of Oracle Hyperion Financial Management. Public technical details beyond the component name and impact vector are not available. Refer to the Oracle Security Alert for vendor-authoritative information.

Attack Vector

An attacker sends crafted HTTP requests directly to a network-reachable Hyperion Financial Management instance. No authentication or user interaction is required. The high attack complexity indicates additional conditions must be satisfied for exploitation to succeed, such as specific server state or configuration.

No public proof-of-concept exploit, exploit database entry, or CISA KEV listing exists for this vulnerability at the time of publication. The EPSS probability is 0.258%, indicating a low near-term likelihood of exploitation in the wild.

Detection Methods for CVE-2026-70848

Indicators of Compromise

Unexpected HTTP requests to Hyperion Financial Management endpoints from unauthenticated sources, particularly outside normal reporting cycles.
Anomalous outbound data volumes from Hyperion application servers that may indicate bulk data enumeration.
Access log entries showing repeated requests to Security component URIs from a single external source.

Detection Strategies

Enable and review Oracle Hyperion Financial Management application and web tier access logs for unauthenticated requests to sensitive endpoints.
Deploy a web application firewall (WAF) in front of Hyperion to flag requests that bypass authentication controls.
Correlate HTTP access patterns with authentication events to identify sessions that access data without a corresponding login.

Monitoring Recommendations

Ingest Hyperion middleware, WebLogic, and OHS logs into a centralized SIEM for behavioral baselining.
Alert on spikes in HTTP 200 responses to unauthenticated endpoints on the Hyperion service.
Monitor egress traffic from Hyperion servers to detect exfiltration following suspicious inbound activity.

How to Mitigate CVE-2026-70848

Immediate Actions Required

Apply the fix from the Oracle August 2026 Critical Patch Update to all Oracle Hyperion Financial Management 11.2.25.0.000 deployments.
Inventory all Hyperion Financial Management instances, including non-production and disaster recovery environments, to confirm patch coverage.
Restrict network access to Hyperion Financial Management to trusted management networks and VPN segments only.

Patch Information

Oracle addressed CVE-2026-70848 in the August 2026 Critical Patch Update. Administrators should review the Oracle Security Alert and apply the corresponding patch bundle for Hyperion 11.2.x. Verify the patch level after installation using Oracle's inventory tooling.

Workarounds

Place Hyperion Financial Management behind a reverse proxy or WAF that enforces authentication before requests reach the application tier.
Apply network-layer access control lists (ACLs) to allow HTTP access only from authorized internal ranges.
Disable or firewall any Hyperion services that are not required for business operations to reduce the exposed attack surface.

bash

# Example iptables rule limiting Hyperion HTTP access to an internal management subnet
iptables -A INPUT -p tcp --dport 19000 -s 10.10.20.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 19000 -j DROP