CVE-2026-61147: Oracle Commerce Guided Search DoS Flaw

CVE-2026-61147 Overview

CVE-2026-61147 is a denial of service vulnerability affecting Oracle Commerce Guided Search and Oracle Commerce Experience Manager version 11.4.0. The flaw resides in the Content Acquisition System component. An unauthenticated attacker with local logon access to the infrastructure where the product executes can trigger a hang or repeatable crash, resulting in a complete denial of service.

The vulnerability requires local access but no authentication or user interaction. Oracle disclosed the issue in the July 2026 Critical Patch Update. No exploit code is publicly available, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog.

Critical Impact
Successful exploitation causes a complete denial of service against Oracle Commerce Guided Search and Experience Manager 11.4.0 deployments, disrupting e-commerce search and content delivery.

Affected Products

Oracle Commerce Guided Search 11.4.0
Oracle Commerce Experience Manager 11.4.0
Content Acquisition System component

Discovery Timeline

2026-07-21 - CVE-2026-61147 published to NVD
2026-07-21 - Last updated in NVD database
July 2026 - Oracle Critical Patch Update released addressing the vulnerability

Technical Details for CVE-2026-61147

Vulnerability Analysis

The vulnerability affects the Content Acquisition System (CAS) component of Oracle Commerce Guided Search and Experience Manager. CAS handles data ingestion and processing for the commerce search platform. It crawls source systems, transforms records, and pushes indexed content to the search engine.

The defect allows an attacker with local access to trigger a hang or crash of the affected service. The impact is limited to availability. Confidentiality and integrity remain unaffected. However, a repeatable crash effectively removes search and merchandising capabilities from dependent storefronts.

The attack scope remains unchanged, meaning exploitation impacts only the vulnerable component rather than adjacent systems. The EPSS score of 0.118% reflects a low probability of exploitation activity in the near term.

Root Cause

Oracle has not published detailed root cause analysis. The advisory indicates the issue resides within the Content Acquisition System and produces availability impact only. This behavior is consistent with a resource exhaustion or unhandled exception condition in a locally reachable service endpoint.

Attack Vector

Exploitation requires local logon access to the host running the Oracle Commerce Guided Search or Experience Manager service. The attacker does not need valid application credentials. Once the attacker interacts with the vulnerable CAS interface, crafted input or requests trigger the hang or crash condition.

The vulnerability manifests as a denial of service. See the Oracle Security Alert July 2026 for the vendor's technical description.

Detection Methods for CVE-2026-61147

Indicators of Compromise

Unexpected termination or hang of Content Acquisition System processes on Oracle Commerce hosts
Repeated service restarts of dgraph or CAS-related processes in a short time window
Interruptions to indexing pipelines and stalled crawl jobs originating from local sessions

Detection Strategies

Monitor Oracle Commerce service logs for abnormal exception traces and abrupt process exits within the CAS component
Correlate local logon events with subsequent CAS service failures to identify suspicious sequences
Baseline normal CAS memory and CPU consumption to identify anomalous spikes preceding crashes

Monitoring Recommendations

Forward Oracle Commerce application logs and host process telemetry to a centralized SIEM for continuous review
Alert on service availability changes for the Content Acquisition System and downstream search indexers
Track local user session activity on Commerce servers, focusing on non-administrative accounts interacting with CAS endpoints

How to Mitigate CVE-2026-61147

Immediate Actions Required

Apply the fixes from the Oracle July 2026 Critical Patch Update to all Oracle Commerce Guided Search and Experience Manager 11.4.0 deployments
Restrict local logon rights on Commerce infrastructure hosts to a minimal set of trusted administrators
Review and reduce interactive access to servers running the Content Acquisition System

Patch Information

Oracle addressed CVE-2026-61147 in the Oracle Critical Patch Update Advisory - July 2026. Administrators should download and apply the patches for Oracle Commerce version 11.4.0 following Oracle's documented upgrade procedures. Validate application functionality in a staging environment before deploying to production.

Workarounds

Limit network and shell access to Commerce hosts using host-based firewalls and jump server enforcement
Enforce least privilege on operating system accounts to prevent unauthorized local logons
Isolate Oracle Commerce infrastructure within segmented network zones to reduce local exposure

bash

# Example: restrict interactive logon on Linux Commerce hosts via PAM access control
# /etc/security/access.conf
-:ALL EXCEPT commerce_admins root:ALL