CVE-2026-61331: Oracle E-Business Suite Auth Bypass Flaw

CVE-2026-61331 Overview

CVE-2026-61331 is a high-severity vulnerability in the Oracle Financials Common Modules product of Oracle E-Business Suite, specifically within the Common Components. Affected versions span 12.2.3 through 12.2.15. An attacker with low privileges and network access via HTTP can exploit the flaw without user interaction. Successful exploitation results in unauthorized read access to critical data across Oracle Financials Common Modules. The scope-change designation indicates attacks can significantly impact additional products beyond the vulnerable component.

Critical Impact
Low-privileged network attackers can obtain complete access to all data readable by Oracle Financials Common Modules, with impact extending to adjacent Oracle products.

Affected Products

Oracle E-Business Suite — Oracle Financials Common Modules, version 12.2.3
Oracle E-Business Suite — Oracle Financials Common Modules, versions 12.2.4 through 12.2.14
Oracle E-Business Suite — Oracle Financials Common Modules, version 12.2.15

Discovery Timeline

2026-08-18 - CVE-2026-61331 published to NVD
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-61331

Vulnerability Analysis

The vulnerability resides in the Common Components of Oracle Financials Common Modules within Oracle E-Business Suite. It is remotely exploitable over HTTP by an authenticated attacker holding only low-level privileges. No user interaction is required, and attack complexity is low. The flaw produces a scope change, meaning exploitation affects resources managed by security authorities beyond the vulnerable component. Confidentiality impact is high, while integrity and availability are not affected. Successful exploitation yields unauthorized read access to critical or all data accessible through Oracle Financials Common Modules.

Root Cause

Oracle has not publicly disclosed the specific technical root cause. Based on the CVSS metrics and scope-change classification, the vulnerability likely stems from improper access control or insufficient authorization checks in a shared component invoked by other Oracle E-Business Suite modules. The Oracle Security Alert is the authoritative source for further technical detail.

Attack Vector

An attacker requires HTTP network access to the Oracle E-Business Suite instance and a low-privileged authenticated account. The attacker issues crafted HTTP requests to the Common Components endpoints exposed by Oracle Financials Common Modules. Because the scope changes on exploitation, data belonging to other Oracle E-Business Suite products can be exposed. No specific exploit code has been published, and the vulnerability is not listed on CISA KEV. Refer to the Oracle Security Alert for vendor guidance.

Detection Methods for CVE-2026-61331

Indicators of Compromise

Unexpected HTTP requests from low-privileged Oracle E-Business Suite accounts to Oracle Financials Common Modules endpoints.
Anomalous volumes of read operations or data export activity originating from accounts without a business need for Financials data.
Application server access logs showing repeated requests to Common Components servlets or JSPs outside normal user patterns.

Detection Strategies

Baseline normal HTTP request patterns to Oracle E-Business Suite Financials Common Modules and alert on deviations by low-privileged users.
Correlate authentication events with subsequent Financials data access to identify credential misuse.
Review Oracle E-Business Suite audit trails for cross-module data access that indicates scope-change exploitation.

Monitoring Recommendations

Enable and centralize Oracle E-Business Suite audit logs, web tier access logs, and database audit records.
Monitor for unusual outbound data flows from application servers hosting Oracle Financials Common Modules.
Alert on modifications to authorization tables or role assignments granting access to Common Components.

How to Mitigate CVE-2026-61331

Immediate Actions Required

Apply the fixes documented in the Oracle Security Alert for Oracle E-Business Suite versions 12.2.3 through 12.2.15.
Inventory all Oracle E-Business Suite instances and confirm patch status for the Financials Common Modules component.
Restrict HTTP access to Oracle E-Business Suite interfaces to trusted networks and users only.
Audit and reduce the number of low-privileged accounts with access to Financials modules until patches are deployed.

Patch Information

Oracle addressed CVE-2026-61331 in a security alert published for Oracle E-Business Suite. Administrators must apply the patch bundle referenced in the Oracle Security Alert to remediate the flaw across supported versions 12.2.3 through 12.2.15.

Workarounds

Place Oracle E-Business Suite behind a web application firewall and restrict access to authenticated internal users pending patch deployment.
Enforce least-privilege access to Financials Common Modules and remove unnecessary role assignments.
Increase logging verbosity and monitor Common Components endpoints for suspicious HTTP activity until the patch is applied.