CVE-2026-70807: Oracle Call Center Auth Bypass Flaw

CVE-2026-70807 Overview

CVE-2026-70807 affects the Oracle Call Center Technology product within Oracle E-Business Suite, specifically the Internal Operations component. The flaw allows a low-privileged attacker with network access via HTTP to compromise the product. Because the vulnerability produces a scope change, exploitation can significantly impact additional products beyond Oracle Call Center Technology. Successful attacks can result in unauthorized access to critical data or complete access to all Oracle Call Center Technology accessible data, along with unauthorized update, insert, or delete access to some data. Supported versions 12.2.3 through 12.2.15 are affected.

Critical Impact
An authenticated attacker with low privileges can reach the vulnerable HTTP interface remotely and exfiltrate or modify data across product boundaries due to the scope change.

Affected Products

Oracle E-Business Suite - Oracle Call Center Technology version 12.2.3
Oracle E-Business Suite - Oracle Call Center Technology versions 12.2.4 through 12.2.14
Oracle E-Business Suite - Oracle Call Center Technology version 12.2.15

Discovery Timeline

2026-08-18 - CVE-2026-70807 published to the National Vulnerability Database
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-70807

Vulnerability Analysis

The vulnerability resides in the Internal Operations component of Oracle Call Center Technology, a module of Oracle E-Business Suite. An authenticated user holding only low privileges can send crafted HTTP requests over the network to trigger the flaw. Exploitation does not require user interaction, and the attack complexity is low.

The most consequential characteristic is the scope change. A successful attack does not stay confined to Oracle Call Center Technology and can affect resources managed by other components of Oracle E-Business Suite. This expands the potential blast radius substantially in typical enterprise deployments where E-Business Suite hosts finance, HR, and operational data.

Impact is weighted toward confidentiality, with high loss of sensitive data, and includes partial integrity loss through unauthorized modification of a subset of records. Availability is not affected.

Root Cause

Oracle has not published detailed root-cause information in the referenced advisory. The behavior — network reachability, HTTP delivery, low privilege requirement, and scope change — is consistent with a broken access control or improper authorization defect in an HTTP-accessible operation exposed by the Internal Operations component.

Attack Vector

An attacker authenticates to the Oracle E-Business Suite instance with any low-privilege account and sends HTTP requests to the vulnerable Internal Operations endpoints of Oracle Call Center Technology. No client-side interaction is needed. Because scope changes, the request context can reach data and functions outside the originally authorized component.

No verified proof-of-concept code has been published. For technical specifics, refer to the Oracle Critical Patch Update Advisory - August 2026.

Detection Methods for CVE-2026-70807

Indicators of Compromise

Unexpected HTTP requests to Oracle Call Center Technology Internal Operations URLs originating from low-privilege user sessions.
Access log entries showing successful data reads or writes from accounts that do not normally interact with Call Center Technology modules.
Anomalous cross-module data access patterns within Oracle E-Business Suite audit tables.

Detection Strategies

Enable and review Oracle E-Business Suite Sign-On Audit and page access tracking for the OKCC and Call Center Technology page flows.
Correlate HTTP access logs from Oracle HTTP Server with database audit records to identify sessions where a low-privilege user reads data belonging to other functional modules.
Alert on repeated HTTP 200 responses to Internal Operations endpoints from accounts without a business role in customer support operations.

Monitoring Recommendations

Forward Oracle HTTP Server access logs and database fine-grained audit records to a centralized analytics platform for behavioral baselining.
Monitor for privilege boundary crossings where a session authenticated to one responsibility retrieves data associated with another.
Track the EPSS trajectory for CVE-2026-70807, currently at 0.316% (percentile 24.477 as of 2026-08-20), and re-evaluate risk if it rises.

How to Mitigate CVE-2026-70807

Immediate Actions Required

Apply the fixes distributed in the Oracle Critical Patch Update Advisory - August 2026 to all Oracle E-Business Suite deployments running versions 12.2.3 through 12.2.15.
Inventory low-privilege accounts with HTTP access to the Oracle E-Business Suite front end and validate that each is still required.
Restrict network exposure of the Oracle E-Business Suite web tier to trusted internal networks and VPN clients only.

Patch Information

Oracle addresses CVE-2026-70807 through the August 2026 Critical Patch Update. Administrators should download the patch bundle for Oracle E-Business Suite 12.2 from My Oracle Support and apply it through the standard adop patching workflow. Follow the version-specific prerequisites listed in the advisory before applying.

Workarounds

Disable or restrict access to Oracle Call Center Technology responsibilities for user accounts that do not require them until patching is complete.
Place a web application firewall in front of the Oracle E-Business Suite web tier and block requests to Call Center Technology Internal Operations paths from non-support user roles.
Enforce network segmentation between the E-Business Suite application tier and unrelated business networks to limit lateral reach if exploitation occurs.

bash

# Example: apply the August 2026 CPU on Oracle E-Business Suite 12.2
# Refer to the Oracle advisory for the exact patch numbers per version.
source $APPL_TOP/APPS<CONTEXT_NAME>.env
adop phase=prepare
adop phase=apply patches=<CPU_AUG2026_PATCH_ID> workers=8
adop phase=finalize
adop phase=cutover
adop phase=cleanup