CVE-2026-70849 Overview
CVE-2026-70849 affects the Security component of Oracle Hyperion Financial Management version 11.2.25.0.000. The vulnerability allows a high-privileged attacker with network access via HTTP to compromise the application. Successful exploitation results in unauthorized access to critical data and the ability to cause a complete denial of service through hangs or repeatable crashes. Oracle disclosed the issue in its August 2026 Security Alert advisory.
Critical Impact
Authenticated attackers can read all data accessible to Oracle Hyperion Financial Management and trigger a full application crash, affecting both confidentiality and availability.
Affected Products
- Oracle Hyperion Financial Management 11.2.25.0.000
- Component: Security
- Product family: Oracle Hyperion
Discovery Timeline
- 2026-08-18 - CVE-2026-70849 published to NVD
- 2026-08-20 - Last updated in NVD database
- August 2026 - Oracle publishes Oracle Security Alert August 2026
Technical Details for CVE-2026-70849
Vulnerability Analysis
The flaw resides in the Security component of Oracle Hyperion Financial Management. An attacker who already holds high privileges within the application can leverage HTTP-based access to bypass intended security boundaries. Exploitation produces two distinct outcomes: disclosure of data accessible to the Hyperion Financial Management instance, and a service-level crash that renders the application unavailable.
Oracle classifies the issue as easily exploitable once the attacker holds the required privilege level. No user interaction is required, and the attack traverses the network without local access. The impact is scoped to the vulnerable component itself, meaning privileges do not automatically extend to other Oracle products on the same host.
Root Cause
Oracle has not published detailed root cause information beyond identifying the Security component as the affected module. The Oracle Security Alert August 2026 is the authoritative reference for technical specifics. The combined confidentiality and availability impact suggests improper authorization checks or unsafe handling of privileged operations within the Security subsystem.
Attack Vector
The attack path requires an authenticated session with high privileges and HTTP reachability to the Hyperion Financial Management application server. An attacker with valid administrative or elevated application credentials sends crafted requests to the Security component. These requests either return sensitive data outside the attacker's normal scope or force the application into a hang or repeatable crash state.
No public proof-of-concept exploit code exists at the time of publication. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog, and no active exploitation has been reported.
Detection Methods for CVE-2026-70849
Indicators of Compromise
- Unexpected application hangs or repeated crash events in Oracle Hyperion Financial Management service logs.
- Anomalous HTTP request patterns from high-privileged accounts targeting Security component endpoints.
- Bulk read operations against financial data records outside a user's normal access patterns.
Detection Strategies
- Correlate authentication logs with Hyperion Financial Management application logs to identify privileged sessions issuing unusual request volumes.
- Monitor Windows and application event logs for repeated Hyperion process termination or restart events.
- Baseline normal administrative activity and alert on deviations, particularly outside standard change windows.
Monitoring Recommendations
- Enable verbose auditing on the Hyperion Financial Management Security component and forward logs to a centralized platform.
- Track HTTP 5xx response rates from the Hyperion application tier as an early crash indicator.
- Review privileged account usage weekly and revoke unused high-privilege entitlements.
How to Mitigate CVE-2026-70849
Immediate Actions Required
- Apply the patches referenced in the Oracle Security Alert August 2026 to all instances running Oracle Hyperion Financial Management 11.2.25.0.000.
- Audit accounts with high privileges in Hyperion Financial Management and remove entitlements that are not required.
- Restrict HTTP access to the Hyperion Financial Management application tier to trusted management networks.
Patch Information
Oracle addressed CVE-2026-70849 in the August 2026 Critical Patch Update Security Alert cycle. Administrators should consult the Oracle Security Alert August 2026 for exact patch identifiers and installation procedures for their deployment.
Workarounds
- Enforce network-level access controls that permit HTTP connections to Hyperion Financial Management only from administrative jump hosts.
- Rotate credentials for all high-privileged Hyperion accounts and enforce multi-factor authentication at the identity provider layer.
- Increase log retention and alerting thresholds for the Security component until patches are deployed.
# Example: restrict HTTP access to the Hyperion application tier using host firewall rules
# Replace <mgmt_subnet> with your administrative network CIDR
iptables -A INPUT -p tcp --dport 443 -s <mgmt_subnet> -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
