CVE-2026-91550 Overview
CVE-2026-91550 affects Oracle Agile Product Lifecycle Management for Process, specifically the Product Quality Management component. The flaw resides in version 6.2.4 of the product within the Oracle Supply Chain suite. An authenticated attacker with low privileges can exploit the vulnerability over HTTP to compromise the application. Successful exploitation results in full takeover of the Oracle Agile PLM for Process instance, with impacts on confidentiality, integrity, and availability. Oracle addressed the issue in the October 2026 Critical Patch Update.
Critical Impact
A low-privileged, network-based attacker can achieve complete takeover of Oracle Agile Product Lifecycle Management for Process 6.2.4.
Affected Products
- Oracle Agile Product Lifecycle Management for Process 6.2.4
- Oracle Supply Chain — Product Quality Management component
- Deployments exposing the Agile PLM for Process web interface over HTTP
Discovery Timeline
- 2026-10-20 - CVE-2026-91550 published to NVD
- 2026-10-21 - Last updated in NVD database
- October 2026 - Oracle releases fix in the Oracle Critical Patch Update October 2026
Technical Details for CVE-2026-91550
Vulnerability Analysis
The vulnerability resides in the Product Quality Management component of Oracle Agile Product Lifecycle Management for Process 6.2.4. An attacker reaches the vulnerable code path through standard HTTP requests to the application. The attacker must hold a valid low-privileged account, but no user interaction is required. Successful exploitation yields high impact on confidentiality, integrity, and availability, equivalent to administrative control of the application. Oracle's advisory classifies the outcome as a full product takeover, which includes access to tracked product quality data, workflows, and supplier records. Oracle has not published root-cause details beyond the component and version in the October 2026 Critical Patch Update.
Root Cause
Oracle has not disclosed the underlying code defect. Based on the advisory, the flaw is reachable through authenticated HTTP interaction with the Product Quality Management component and does not require elevated privileges or user interaction. The scope remains unchanged, indicating the compromise stays within the vulnerable component's security authority.
Attack Vector
The attack originates over the network via HTTP against the Agile PLM for Process web tier. The attacker authenticates with a low-privileged account, then issues crafted requests against the Product Quality Management functionality to escalate control over the application. Because exploitation is characterized as easy and does not need user interaction, exposed instances with weakly segmented user populations face elevated risk from insider abuse and credential-based intrusions.
No verified proof-of-concept code is published. Refer to the Oracle Critical Patch Update October 2026 for vendor-provided technical context.
Stop Remote Code Execution Before It Runs
Singularity™ Endpoint detects and blocks exploit attempts at machine speed, including zero-days and novel attack techniques.
Stop Exploit AttemptsDetection Methods for CVE-2026-91550
Indicators of Compromise
- Unexpected privilege changes, new administrative roles, or configuration modifications within Agile PLM for Process audit logs.
- Anomalous HTTP requests to Product Quality Management endpoints originating from low-privileged user sessions.
- Outbound connections or data exfiltration patterns from the Agile PLM application server shortly after authenticated web activity.
Detection Strategies
- Correlate web server access logs with application audit trails to identify low-privileged accounts touching administrative or PQM configuration functions.
- Baseline normal HTTP request volume and parameter patterns for authenticated Agile PLM sessions and alert on deviations.
- Monitor Oracle database activity initiated by the Agile PLM service account for schema or privilege changes outside of change windows.
Monitoring Recommendations
- Forward Agile PLM for Process web and audit logs into a centralized SIEM for retention and query.
- Enable file integrity monitoring on application configuration files and deployment directories on the Agile PLM server.
- Track authentication events for low-privileged accounts and alert on rapid permission or role transitions.
How to Mitigate CVE-2026-91550
Immediate Actions Required
- Apply the October 2026 Oracle Critical Patch Update to all Oracle Agile Product Lifecycle Management for Process 6.2.4 deployments.
- Inventory internal and partner-facing Agile PLM instances and prioritize internet-exposed systems for immediate patching.
- Rotate credentials for low-privileged Agile PLM accounts and review recent authentication activity for abuse.
Patch Information
Oracle published the fix in the Oracle Critical Patch Update October 2026. Administrators should follow Oracle's documented patch application procedure for Agile PLM for Process 6.2.4 and validate functionality in a staging environment before production rollout.
Workarounds
- Restrict network access to the Agile PLM for Process web tier using firewall rules, VPN, or a reverse proxy with allow-listed source ranges.
- Enforce least-privilege account provisioning and remove unused low-privileged accounts from the application.
- Require multi-factor authentication at the identity provider for all Agile PLM users until patching is complete.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
