CVE-2026-71107: Oracle Business Intelligence Enterprise Edition Auth Bypass

CVE-2026-71107 Overview

CVE-2026-71107 is an improper access control vulnerability [CWE-284] in the Analytics Server component of Oracle Business Intelligence Enterprise Edition (OBIEE). Affected versions include 8.2.0.0.0 and 26.01.0.0.0. An unauthenticated attacker with network access over HTTP can exploit this vulnerability without user interaction. Successful exploitation grants unauthorized access to critical data across the Oracle Business Intelligence Enterprise Edition deployment. Oracle disclosed the issue in the Oracle Security Alert August 2026.

Critical Impact
An unauthenticated remote attacker can read all data accessible to Oracle Business Intelligence Enterprise Edition, exposing business intelligence datasets, reports, and connected data sources.

Affected Products

Oracle Business Intelligence Enterprise Edition 8.2.0.0.0
Oracle Business Intelligence Enterprise Edition 26.01.0.0.0
Oracle Analytics Server (Analytics Server component)

Discovery Timeline

2026-08-18 - CVE-2026-71107 published to NVD
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-71107

Vulnerability Analysis

The vulnerability resides in the Analytics Server component of Oracle Business Intelligence Enterprise Edition. It is classified as improper access control [CWE-284], meaning the server fails to correctly enforce authorization on specific HTTP-reachable functionality. An unauthenticated attacker sends crafted requests over the network and gains read access to data that should require authenticated privileged access.

Oracle categorizes the impact as confidentiality-only. The integrity and availability of the platform are not directly affected. However, business intelligence deployments often aggregate sensitive financial, HR, and customer data, which amplifies the operational impact of unauthorized reads.

Root Cause

The root cause is missing or improperly enforced access control checks on Analytics Server endpoints. The server accepts and processes requests without validating that the caller holds the required session or role. This class of flaw typically stems from unauthenticated request handlers that expose privileged data-retrieval paths, or from authorization logic that can be bypassed by manipulating request parameters or paths.

Attack Vector

Exploitation requires only network access to the OBIEE HTTP interface. No credentials, user interaction, or elevated privileges are required. The attacker issues HTTP requests directly to exposed Analytics Server endpoints. Deployments that publish OBIEE to the internet, or to broad internal network segments, are at elevated risk.

No verified public exploit code is available at the time of publication. Refer to the Oracle Security Alert August 2026 for authoritative technical details.

Detection Methods for CVE-2026-71107

Indicators of Compromise

Unauthenticated HTTP or HTTPS requests to Analytics Server endpoints originating from unexpected external or internal source addresses.
Large or repeated data-retrieval responses returned to sessions that never completed authentication in OBIEE access logs.
Access log entries showing successful HTTP 200 responses on privileged Analytics Server paths without preceding login events.

Detection Strategies

Review OBIEE access logs and reverse proxy logs for anomalous request patterns targeting /analytics and Analytics Server APIs without valid session cookies.
Correlate WebLogic and Analytics Server audit logs against authentication events to surface requests that bypass the login flow.
Deploy signatures on network security devices that flag unauthenticated access to sensitive OBIEE endpoints.

Monitoring Recommendations

Alert on spikes in response size or request volume against the Analytics Server component.
Monitor egress traffic from OBIEE hosts for unusual outbound transfers that could indicate data staging.
Continuously inventory internet-exposed OBIEE instances and validate patch level against the August 2026 Oracle advisory.

How to Mitigate CVE-2026-71107

Immediate Actions Required

Apply the fixes referenced in the Oracle Security Alert August 2026 on all OBIEE 8.2.0.0.0 and 26.01.0.0.0 deployments.
Restrict network reachability of the Analytics Server to authenticated administrators and required application tiers.
Audit OBIEE access logs for suspicious unauthenticated activity dating back to the initial exposure window.

Patch Information

Oracle addressed CVE-2026-71107 in the August 2026 Security Alert. Administrators should download and apply the patches for Oracle Business Intelligence Enterprise Edition versions 8.2.0.0.0 and 26.01.0.0.0 from the Oracle Security Alert August 2026 advisory. Validate patch application by confirming the reported build number in the Analytics Server console after restart.

Workarounds

Place OBIEE behind a reverse proxy or web application firewall that enforces authentication before requests reach the Analytics Server.
Block direct internet exposure of OBIEE endpoints and restrict access to trusted VPN or bastion networks until patches are applied.
Disable or firewall unused Analytics Server endpoints to reduce the attack surface.

bash

# Example: restrict OBIEE Analytics Server to trusted subnet using iptables
iptables -A INPUT -p tcp --dport 9502 -s 10.10.0.0/16 -j ACCEPT
iptables -A INPUT -p tcp --dport 9502 -j DROP