CVE-2026-70778: Oracle E-Business Suite Auth Bypass Flaw

CVE-2026-70778 Overview

CVE-2026-70778 is a high-severity vulnerability in the Oracle Customer Care product of Oracle E-Business Suite, specifically in the Internal Operations component. Supported versions 12.2.3 through 12.2.15 are affected. A low-privileged attacker with network access via HTTP can exploit this issue when a legitimate user interacts with attacker-supplied content. Successful exploitation results in unauthorized creation, deletion, or modification of critical data, along with unauthorized access to all Oracle Customer Care accessible data. Because the vulnerability produces a scope change, exploitation can significantly impact additional Oracle products beyond Customer Care itself.

Critical Impact
A remote, low-privileged attacker can compromise the confidentiality and integrity of critical Oracle E-Business Suite data and pivot to affect additional products through scope change, requiring only that a victim user interact with attacker-supplied content.

Affected Products

Oracle E-Business Suite - Oracle Customer Care 12.2.3
Oracle E-Business Suite - Oracle Customer Care versions 12.2.4 through 12.2.14
Oracle E-Business Suite - Oracle Customer Care 12.2.15

Discovery Timeline

2026-08-18 - CVE CVE-2026-70778 published to NVD
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-70778

Vulnerability Analysis

The vulnerability resides in the Internal Operations component of Oracle Customer Care, part of the Oracle E-Business Suite. An authenticated attacker with low privileges can send crafted HTTP requests that, when combined with victim interaction, execute unauthorized actions in the application context. The scope change indicates that exploitation crosses the authority boundary of the vulnerable component and affects other Oracle products that share trust or session context with Customer Care. Impact covers both confidentiality and integrity: an attacker can read, modify, create, or delete any data accessible to the Customer Care application. Availability is not directly impacted by this flaw.

Root Cause

Oracle has not published the specific class of weakness in its security alert. The exploitation pattern, requiring user interaction combined with a scope-changing outcome, is consistent with client-side injection flaws such as Cross-Site Scripting (XSS) or Cross-Site Request Forgery (CSRF) in the Internal Operations user interface. The absence of a listed CWE in NVD reflects Oracle's standard disclosure practice of withholding root-cause detail.

Attack Vector

Exploitation requires network access to the Oracle Customer Care HTTP interface and valid low-privileged credentials. The attacker prepares a malicious request or payload and then induces a legitimate user, typically an internal operator or administrator, to interact with it. When the victim triggers the attacker-controlled action, the application executes it under the victim's session context. Because the scope changes, the executed action can reach resources beyond the Customer Care module, extending impact to other Oracle E-Business Suite products.

No public proof-of-concept exploit is available. Refer to the Oracle Security Alert for vendor-specific technical detail.

Detection Methods for CVE-2026-70778

Indicators of Compromise

Unexpected HTTP POST or GET requests to Oracle Customer Care Internal Operations endpoints originating from authenticated low-privileged accounts.
Anomalous session activity where a user's session performs create, modify, or delete operations shortly after clicking an external link or opening an email.
Data changes in Customer Care tables that do not correspond to a documented business workflow or authorized change ticket.

Detection Strategies

Enable Oracle E-Business Suite auditing (FND_LOG_MESSAGES, sign-on audit, and page-access tracking) to correlate user interactions with sensitive Internal Operations transactions.
Deploy web application firewall (WAF) rules that inspect HTTP requests to Customer Care URLs for suspicious script content, unexpected referrers, or cross-origin form submissions.
Baseline normal Internal Operations activity per user role and alert on deviations, particularly on privilege-sensitive actions performed after off-hours logins.

Monitoring Recommendations

Forward Oracle E-Business Suite application, database, and Apache access logs to a centralized SIEM for correlation with endpoint and identity telemetry.
Monitor for HTTP referrer headers pointing to unknown external domains when Customer Care write operations occur.
Track outbound requests from browsers of Oracle EBS users to detect payload delivery infrastructure used in social-engineering campaigns.

How to Mitigate CVE-2026-70778

Immediate Actions Required

Apply the patches published in the Oracle Critical Patch Update referenced in the Oracle Security Alert for August 2026.
Restrict network access to Oracle E-Business Suite Internal Operations interfaces to trusted management networks and VPN users only.
Review low-privileged Customer Care accounts, disable dormant users, and enforce multi-factor authentication for interactive logins.

Patch Information

Oracle addressed CVE-2026-70778 in the August 2026 Critical Security Patch Update for Oracle E-Business Suite. Administrators running any version between 12.2.3 and 12.2.15 must apply the corresponding patches from the Oracle Security Alert. Verify patch application against Oracle's patch inventory scripts and validate that the Internal Operations component reports the updated version after deployment.

Workarounds

Disable or restrict access to the Internal Operations responsibility for users who do not require it as an interim measure until patching is complete.
Configure browser and email security controls to strip or sandbox links pointing to internal Oracle EBS URLs from untrusted senders.
Enforce strict Content-Security-Policy, X-Frame-Options, and SameSite cookie attributes on the Oracle HTTP Server hosting E-Business Suite to reduce the exploitability of user-interaction-based attacks.

bash

# Example: restrict Oracle HTTP Server access to Internal Operations by source IP
<Location /OA_HTML/RF.jsp>
    Require ip 10.0.0.0/8
    Require ip 192.168.10.0/24
</Location>

# Enforce SameSite and Secure cookie attributes in httpd.conf
Header edit Set-Cookie ^(.*)$ $1;SameSite=Strict;Secure