CVE-2026-70958 Overview
CVE-2026-70958 is a vulnerability in the Oracle Hyperion Infrastructure Technology product, within the Installation and Configuration component. The affected version is 11.2.25.0.000. An unauthenticated attacker with network access via HTTP can compromise the product when a user is tricked into interacting with a crafted request. The flaw is classified under CWE-601: URL Redirection to Untrusted Site, commonly known as Open Redirect. Successful exploitation results in a scope change and can compromise additional products beyond Oracle Hyperion Infrastructure Technology.
Critical Impact
Successful exploitation allows takeover of Oracle Hyperion Infrastructure Technology and can significantly impact adjacent Oracle products through scope change.
Affected Products
- Oracle Hyperion Infrastructure Technology 11.2.25.0.000
- Component: Installation and Configuration
- Oracle Hyperion product family (via scope change)
Discovery Timeline
- 2026-08-18 - CVE-2026-70958 published to the National Vulnerability Database
- 2026-08-22 - Last updated in NVD database
- August 2026 - Addressed in the Oracle Security Alert August 2026
Technical Details for CVE-2026-70958
Vulnerability Analysis
The vulnerability is an open redirect [CWE-601] in the Installation and Configuration component of Oracle Hyperion Infrastructure Technology. An unauthenticated attacker sends a crafted HTTP request that manipulates a redirect parameter to point to an attacker-controlled destination. The attack requires user interaction, meaning a victim must click a link or open a resource containing the crafted URL.
Because the vulnerability produces a scope change, exploitation extends impact beyond the vulnerable Hyperion component into adjacent products and trust boundaries. The result is full compromise of confidentiality, integrity, and availability of Oracle Hyperion Infrastructure Technology.
Root Cause
The root cause is improper validation of a user-controlled URL or redirect parameter within the Installation and Configuration workflow. The application accepts external destinations and issues an HTTP redirect without verifying that the target belongs to a trusted domain or allowlist.
Attack Vector
An attacker crafts a URL pointing to a legitimate Oracle Hyperion endpoint with a manipulated redirect parameter. The attacker delivers the URL through phishing, chat, or embedded content. When the victim follows the link, the Hyperion server issues a redirect to an attacker-controlled site. The attacker can then harvest credentials, deliver malware, or chain the redirect with additional attacks against products in the extended trust boundary.
No verified proof-of-concept code is publicly available. Refer to the Oracle Security Alert August 2026 for vendor technical details.
Detection Methods for CVE-2026-70958
Indicators of Compromise
- HTTP requests to Oracle Hyperion endpoints containing redirect, url, next, return, or target parameters pointing to external domains.
- HTTP 302 or 301 responses from Hyperion Infrastructure Technology servers with Location headers referencing untrusted hosts.
- Referrer headers in downstream authentication or phishing logs sourced from Hyperion URLs.
- User reports of unexpected browser navigation away from internal Hyperion portals.
Detection Strategies
- Inspect web server and reverse proxy access logs for outbound redirects originating from Hyperion Installation and Configuration paths.
- Deploy web application firewall rules that flag redirect parameters containing fully qualified external URLs.
- Correlate email gateway telemetry with clicks on Hyperion URLs containing suspicious query strings.
Monitoring Recommendations
- Monitor HTTP traffic to Hyperion servers for anomalous query parameters and long, URL-encoded values.
- Alert on outbound HTTP redirects from Hyperion hosts that resolve to newly registered or low-reputation domains.
- Track user interaction patterns and flag sessions that traverse Hyperion redirects to unmanaged external destinations.
How to Mitigate CVE-2026-70958
Immediate Actions Required
- Apply the fixes from the Oracle Security Alert August 2026 to all Oracle Hyperion Infrastructure Technology 11.2.25.0.000 deployments.
- Restrict network access to Hyperion Installation and Configuration endpoints to trusted administrative networks.
- Train users to inspect Hyperion URLs before clicking, particularly links containing redirect parameters.
- Review web server logs for prior exploitation attempts against redirect parameters.
Patch Information
Oracle addressed CVE-2026-70958 in the Oracle Security Alert published in August 2026. Administrators should consult the Oracle Security Alert August 2026 advisory for exact patch identifiers, prerequisites, and installation instructions for Oracle Hyperion Infrastructure Technology version 11.2.25.0.000.
Workarounds
- Enforce an allowlist of internal domains at the reverse proxy or web application firewall for any redirect responses issued by Hyperion.
- Strip or normalize redirect query parameters at the network edge until the vendor patch is applied.
- Require additional authentication challenges for administrative Hyperion workflows to reduce the value of a successful redirect-based phishing attack.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
