CVE-2026-87193: Oracle Hyperion Financial Management Bypass

CVE-2026-87193 Overview

CVE-2026-87193 is an information disclosure vulnerability in the Security component of Oracle Hyperion Financial Management. The affected version is 11.2.26.0.000. An unauthenticated remote attacker can exploit this flaw over HTTP without user interaction or prior credentials. Successful exploitation grants access to all data accessible by the application, exposing sensitive financial records processed by the platform. Oracle disclosed the issue in the Oracle Security Alert CSPUSEP2026.

Critical Impact
Unauthenticated network attackers can read all data accessible to Oracle Hyperion Financial Management, including consolidated financial reporting information.

Affected Products

Oracle Hyperion Financial Management 11.2.26.0.000
Oracle Hyperion product family (Security component)
Deployments exposing the Hyperion HTTP interface to untrusted networks

Discovery Timeline

2026-09-15 - CVE-2026-87193 published to the National Vulnerability Database
2026-09-16 - Last updated in NVD database

Technical Details for CVE-2026-87193

Vulnerability Analysis

The vulnerability resides in the Security component of Oracle Hyperion Financial Management. It permits an unauthenticated attacker to reach protected data through the HTTP interface without providing credentials. The advisory categorizes the issue as an information disclosure flaw impacting confidentiality only. Integrity and availability of the system remain unaffected by successful exploitation.

Oracle Hyperion Financial Management stores consolidated financial data, intercompany reconciliations, and audit records. Data exposed through this weakness may include general ledger balances, entity hierarchies, and journal entries. Because the flaw does not require user interaction, it can be exploited through direct HTTP requests to a vulnerable server.

Root Cause

Oracle has not published the specific defect. Based on the advisory metadata, the Security component fails to enforce authentication on a request path that returns application data. The condition falls into the Broken Access Control class of weaknesses.

Attack Vector

Exploitation occurs over the network through the Hyperion HTTP listener. The attacker sends crafted requests to endpoints served by the Security component and receives protected data in the response. No exploit code, proof-of-concept, or public technical write-up is currently available. The Oracle Security Alert CSPUSEP2026 contains the vendor patch reference.

No verified exploit code is available. Refer to the Oracle advisory for remediation details.

Detection Methods for CVE-2026-87193

Indicators of Compromise

Unauthenticated HTTP or HTTPS requests to Hyperion Financial Management endpoints originating from unexpected source addresses
Large or repeated response payloads returned to clients that never completed an authentication handshake
Access log entries showing sensitive URIs served with HTTP 200 responses in the absence of a valid session cookie

Detection Strategies

Baseline normal request patterns for the Hyperion web tier and alert on deviations in URI, volume, or response size
Inspect reverse proxy and load balancer logs for requests reaching Hyperion without a prior authentication step
Correlate outbound data volume from Hyperion servers with the identity of the requesting session to surface anonymous data pulls

Monitoring Recommendations

Forward Hyperion application, IIS, and WebLogic access logs to a centralized analytics platform for retention and query
Monitor for scanning behavior against Hyperion virtual directories such as those exposed by the Security component
Alert on any successful HTTP 200 response to a Hyperion API path where the request lacked authentication headers

How to Mitigate CVE-2026-87193

Immediate Actions Required

Apply the fix from the Oracle Security Alert CSPUSEP2026 to all Hyperion Financial Management 11.2.26.0.000 deployments
Restrict network access to Hyperion HTTP interfaces so only trusted management and finance user subnets can reach the service
Review Hyperion access logs for the last 90 days to identify unauthenticated requests that returned application data

Patch Information

Oracle addressed CVE-2026-87193 in the security alert published on 2026-09-15. Administrators should download the referenced patch from My Oracle Support and apply it to Hyperion Financial Management version 11.2.26.0.000. Verify patch installation using Oracle's inventory tooling before returning the environment to production.

Workarounds

Place the Hyperion web tier behind an authenticating reverse proxy that requires enterprise single sign-on before forwarding traffic
Enforce IP allow-listing at the perimeter firewall to limit exposure of the Hyperion HTTP listener
Disable or block external access to the vulnerable Security component endpoints until the vendor patch is applied

bash

# Example firewall restriction limiting Hyperion HTTP access to a finance subnet
iptables -A INPUT -p tcp --dport 443 -s 10.20.30.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP