CVE-2026-46770: Oracle ADF Auth Bypass Vulnerability

CVE-2026-46770 Overview

CVE-2026-46770 affects the Security Framework component of Oracle Application Development Framework (ADF), part of Oracle Fusion Middleware. The flaw allows an unauthenticated attacker with network access via HTTP to compromise ADF when a victim user interacts with attacker-controlled content. The vulnerability has a scope change, meaning successful exploitation can impact resources beyond ADF itself. Attackers can gain unauthorized read access to a subset of ADF data and unauthorized update, insert, or delete access to some ADF data. The weakness is classified under [CWE-284] Improper Access Control.

Critical Impact
Unauthenticated network attackers can compromise data integrity and confidentiality across ADF and related products through user interaction, with cross-component scope impact.

Affected Products

Oracle Application Development Framework (ADF) 12.2.1.4.0
Oracle Application Development Framework (ADF) 14.1.2.0.0
Oracle Fusion Middleware deployments using the ADF Security Framework component

Discovery Timeline

2026-06-17 - CVE-2026-46770 published to NVD
2026-06-17 - Last updated in NVD database
2026-06-18 - EPSS score published at 0.24%

Technical Details for CVE-2026-46770

Vulnerability Analysis

The vulnerability resides in the Security Framework component of Oracle ADF, the Java EE framework used to build enterprise applications within Oracle Fusion Middleware. An unauthenticated attacker can craft a malicious HTTP request or link that, when interacted with by a legitimate user, triggers the access control flaw. The attack requires user interaction, such as clicking a crafted link or visiting an attacker-controlled page that submits a request to a vulnerable ADF endpoint.

The scope change indicator is significant. Exploitation in the ADF component can propagate to other Oracle Fusion Middleware products that rely on ADF for authentication or request handling. Successful exploitation grants partial write access (update, insert, delete) to ADF-accessible data and partial read access to a subset of that data. Availability is not impacted.

Root Cause

The root cause is improper access control [CWE-284] in the ADF Security Framework. Authorization checks fail to adequately validate cross-origin or user-initiated requests against the privileges of the acting principal. Because the framework processes requests in a context that affects neighboring components, a single weakness expands into a multi-product exposure.

Attack Vector

The attack vector is network-based over HTTP. An attacker hosts or distributes a malicious URL or page targeting a victim who has an authenticated session or trust relationship with a vulnerable ADF deployment. When the victim interacts with the content, the attacker leverages the victim's context to perform unauthorized data operations. No attacker credentials are required, but the technique resembles client-side delivery patterns such as cross-site request execution against poorly protected ADF endpoints.

No public proof-of-concept code is available at this time. Refer to the Oracle Security Alert for vendor technical details.

Detection Methods for CVE-2026-46770

Indicators of Compromise

Unexpected HTTP requests to ADF endpoints originating from external referrers or cross-site contexts
Application audit log entries showing unauthorized create, update, or delete operations against ADF-managed data
Anomalous session activity where authenticated users perform actions inconsistent with their normal workflow
HTTP requests targeting ADF Security Framework URLs immediately after the user visits an external link

Detection Strategies

Inspect Oracle Fusion Middleware access logs for requests with suspicious Referer headers or absent CSRF tokens targeting ADF resources
Correlate WebLogic and ADF application logs to identify data modifications that lack a corresponding legitimate user action chain
Deploy web application firewall rules to flag HTTP requests to ADF endpoints that originate from off-domain sources

Monitoring Recommendations

Monitor ADF application servers for unusual patterns of POST, PUT, and DELETE operations across business data tables
Track authentication events alongside data modification events to detect actions performed without explicit user navigation
Forward Oracle Fusion Middleware logs to a centralized SIEM and alert on access control violations referencing the Security Framework

How to Mitigate CVE-2026-46770

Immediate Actions Required

Apply the patches referenced in the Oracle June 2026 Critical Patch Update for affected ADF versions 12.2.1.4.0 and 14.1.2.0.0
Inventory all Oracle Fusion Middleware deployments to identify systems running vulnerable ADF versions
Restrict network exposure of ADF administrative and application endpoints to trusted networks where feasible
Educate users about the risk of clicking unsolicited links that target internal Oracle Fusion Middleware applications

Patch Information

Oracle published fixes as part of the June 2026 Critical Patch Update. Administrators should review the Oracle Security Alert and apply the corresponding patches for ADF 12.2.1.4.0 and 14.1.2.0.0. Validate the patch level after installation and restart affected WebLogic and Fusion Middleware services.

Workarounds

Enforce strict same-origin and CSRF protections at the reverse proxy or web application firewall layer for ADF endpoints
Limit ADF application access to authenticated users on segmented networks and require step-up authentication for sensitive operations
Disable or restrict any non-essential ADF Security Framework endpoints exposed to the public internet until patching is complete

bash

# Example WAF rule concept: block cross-origin state-changing requests to ADF endpoints
# Pseudocode - adapt to your WAF syntax
if request.method in ["POST","PUT","DELETE"] \
   and request.path matches "^/adf/.*" \
   and request.header.Referer not matches "^https://your-trusted-domain\\.example\\.com":
    action: block
    log: "Blocked potential CVE-2026-46770 exploitation attempt"