CVE-2026-70781: Oracle Proposals Privilege Escalation Flaw

CVE-2026-70781 Overview

CVE-2026-70781 affects the Oracle Proposals product within Oracle E-Business Suite, specifically the Internal Operations component. Supported versions 12.2.3 through 12.2.15 are affected. An authenticated attacker with high privileges and network access via HTTP can compromise Oracle Proposals and achieve full product takeover.

The vulnerability impacts confidentiality, integrity, and availability. Because exploitation requires elevated privileges, the attack surface is limited to users who already hold administrative access within the application. Successful exploitation results in complete takeover of the Oracle Proposals product.

Critical Impact
Successful exploitation results in complete takeover of Oracle Proposals, exposing sensitive proposal data and enabling manipulation of business-critical records.

Affected Products

Oracle E-Business Suite Oracle Proposals 12.2.3
Oracle E-Business Suite Oracle Proposals versions 12.2.4 through 12.2.14
Oracle E-Business Suite Oracle Proposals 12.2.15

Discovery Timeline

2026-08-18 - CVE-2026-70781 published to NVD
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-70781

Vulnerability Analysis

The vulnerability resides in the Internal Operations component of Oracle Proposals, a module within Oracle E-Business Suite used to author and manage sales proposals. Oracle categorizes the flaw as easily exploitable once an attacker holds high privileges within the application.

Exploitation is performed over HTTP against the Oracle E-Business Suite web tier. The attacker does not require user interaction. Once triggered, the flaw compromises the confidentiality, integrity, and availability of the Oracle Proposals product, resulting in full takeover of that product's data and functions.

Oracle has not publicly disclosed the underlying technical class of the defect. Consult the Oracle Security Alert for authoritative product details.

Root Cause

Oracle's advisory does not publish a root-cause CWE for this issue. The vendor confirms the defect lives in the Internal Operations component of Oracle Proposals and is reachable through the standard HTTP interface exposed by Oracle E-Business Suite.

Attack Vector

The attack vector is network based over HTTP. An attacker must first hold high-privileged credentials to Oracle Proposals. From an authenticated session, the attacker issues crafted HTTP requests to Internal Operations endpoints to take over the product. No user interaction is required, and the exploit does not cross a trust boundary beyond the vulnerable product.

Detection Methods for CVE-2026-70781

Indicators of Compromise

Unexpected administrative activity in Oracle Proposals audit logs, particularly from accounts that rarely access Internal Operations functionality.
HTTP requests to Oracle E-Business Suite endpoints associated with Oracle Proposals that deviate from established application usage baselines.
Unauthorized changes to proposal records, templates, or approval workflows outside of business hours.

Detection Strategies

Enable Oracle E-Business Suite Sign-On Audit and Page Access Tracking to record every access to Oracle Proposals pages.
Correlate web-tier access logs against application audit tables to identify sessions issuing atypical Internal Operations requests.
Alert on privileged account activity that occurs from new source IPs, unusual geographies, or outside of change windows.

Monitoring Recommendations

Forward Oracle E-Business Suite web-tier logs and database audit trails into a centralized analytics platform for correlation.
Baseline normal administrative behavior in Oracle Proposals and flag deviations in request volume or endpoint mix.
Monitor for privilege changes and role assignments granted to accounts that later access Internal Operations.

How to Mitigate CVE-2026-70781

Immediate Actions Required

Apply the fixes referenced in the Oracle Critical Patch Update / Security Alert of August 2026 to all Oracle E-Business Suite instances running versions 12.2.3 through 12.2.15.
Inventory every Oracle E-Business Suite environment, including non-production, to confirm patch coverage of the Oracle Proposals module.
Review and reduce the number of accounts holding high privileges within Oracle Proposals.

Patch Information

Oracle addressed CVE-2026-70781 in the August 2026 Critical Patch Update. Refer to the Oracle Security Alert for patch identifiers, prerequisites, and installation guidance for each supported version between 12.2.3 and 12.2.15.

Workarounds

Restrict network access to the Oracle E-Business Suite web tier so that only trusted administrative networks can reach Oracle Proposals endpoints.
Enforce multi-factor authentication for all privileged Oracle E-Business Suite accounts to raise the cost of credential compromise.
Rotate credentials for high-privileged Oracle Proposals users and audit role assignments until patches are deployed.

bash

# Example: restrict Oracle E-Business Suite web-tier access at the network edge
# Replace 10.0.0.0/24 with your administrative subnet
iptables -A INPUT -p tcp --dport 8000 -s 10.0.0.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 8000 -j DROP