CVE-2026-83261: Oracle Product Lifecycle Analytics Auth Bypass

CVE-2026-83261 Overview

CVE-2026-83261 is an authentication weakness in Oracle Product Lifecycle Analytics, a component of the Oracle Supply Chain product family. The affected version is 3.6.1. An unauthenticated attacker with network access over HTTP can compromise the application without user interaction. Successful exploitation results in full takeover of the Oracle Product Lifecycle Analytics instance, impacting confidentiality, integrity, and availability. The vulnerability is tracked under [CWE-287: Improper Authentication] and was published to the National Vulnerability Database (NVD) on September 15, 2026.

Critical Impact
Unauthenticated network attackers can take over Oracle Product Lifecycle Analytics 3.6.1 via HTTP with no user interaction required.

Affected Products

Oracle Product Lifecycle Analytics 3.6.1
Oracle Supply Chain product family (Core component)
Deployments exposing HTTP endpoints to untrusted networks

Discovery Timeline

2026-09-15 - CVE-2026-83261 published to NVD
2026-09-16 - Last updated in NVD database
2026-09-16 - EPSS score published at 0.355%

Technical Details for CVE-2026-83261

Vulnerability Analysis

The flaw resides in the Core component of Oracle Product Lifecycle Analytics. It allows an attacker to bypass authentication controls over an HTTP channel. Because the attack requires no privileges and no user interaction, an adversary reaching the application's HTTP interface can obtain full application control. Oracle classifies the outcome as a takeover of the analytics platform, meaning attackers can read, modify, or destroy any data managed by the affected instance.

Oracle Product Lifecycle Analytics aggregates supply chain and product data from upstream systems. A takeover therefore exposes engineering change data, supplier information, quality metrics, and integration credentials to downstream Oracle systems.

Root Cause

The vulnerability is categorized under [CWE-287: Improper Authentication]. Oracle has not published low-level technical details in the alert. The Core component fails to correctly enforce authentication on a network-accessible code path, allowing anonymous requests to reach privileged functionality.

Attack Vector

Exploitation occurs over the network via HTTP. The attacker does not need valid credentials, existing sessions, or user interaction. Any host able to reach the Oracle Product Lifecycle Analytics HTTP listener is a candidate for exploitation. No public proof-of-concept code or exploit module is currently referenced in the CVE record.

No verified proof-of-concept code has been published. Refer to the Oracle Security Alert CSPUSEP2026 for authoritative technical details.

Detection Methods for CVE-2026-83261

Indicators of Compromise

Unauthenticated HTTP requests to Oracle Product Lifecycle Analytics endpoints originating from external or unexpected internal hosts
New administrative users, roles, or scheduled tasks created within the analytics platform without a change ticket
Anomalous outbound connections from the Oracle Product Lifecycle Analytics host to attacker-controlled infrastructure
Unexpected access to sensitive supply chain, engineering change, or supplier data tables

Detection Strategies

Inspect web server and reverse proxy logs for requests to /PLA or related application paths that lack authentication headers or session cookies
Correlate HTTP 200 responses on sensitive administrative endpoints with the absence of a preceding login event
Baseline normal traffic to the analytics tier and alert on request volume spikes or non-browser user agents
Monitor database audit trails on backing Oracle databases for query patterns not tied to authenticated application sessions

Monitoring Recommendations

Forward Oracle Product Lifecycle Analytics application, WebLogic, and OS logs to a centralized SIEM for retention and correlation
Enable Oracle Database Fine-Grained Auditing on tables accessed by the analytics application
Alert on process creation and outbound network activity from the analytics host that deviates from established baselines
Track configuration file and JAR modifications on the application server file system

How to Mitigate CVE-2026-83261

Immediate Actions Required

Apply the Oracle security patch referenced in Oracle Security Alert CSPUSEP2026 as the primary remediation
Restrict network access to the Oracle Product Lifecycle Analytics HTTP interface to trusted management networks only
Audit application accounts, roles, and integration credentials for signs of unauthorized modification
Rotate any credentials, API keys, or service account passwords stored within the affected instance

Patch Information

Oracle addressed CVE-2026-83261 in the CSPUSEP2026 security alert. Administrators running Oracle Product Lifecycle Analytics 3.6.1 should apply the fixes documented in the Oracle Security Alert CSPUSEP2026 without delay. Follow Oracle's staging and validation guidance before promoting the patch to production.

Workarounds

Place the application behind an authenticating reverse proxy or web application firewall (WAF) that rejects unauthenticated requests to sensitive paths
Enforce IP allowlisting at the network layer for administrative and API endpoints until the patch is deployed
Disable or isolate the Oracle Product Lifecycle Analytics instance if it is not actively used in production
Increase log retention and audit frequency during the window between disclosure and patch application

bash

# Example: restrict access to the analytics HTTP listener with iptables
iptables -A INPUT -p tcp --dport 9704 -s 10.10.0.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 9704 -j DROP