CVE-2026-61106: Oracle GoldenGate RCE Vulnerability

CVE-2026-61106 Overview

CVE-2026-61106 is a high-severity vulnerability in Oracle GoldenGate affecting the Config Service Executable component. Supported versions 23.4 through 23.26.2 are affected. An unauthenticated attacker with network access over HTTP can compromise Oracle GoldenGate, resulting in full product takeover. Exploitation impacts confidentiality, integrity, and availability. Oracle rates exploitation as difficult, but the flaw requires no authentication and no user interaction.

Critical Impact
Successful exploitation allows an unauthenticated network attacker to take over Oracle GoldenGate, compromising confidentiality, integrity, and availability of the data replication service.

Affected Products

Oracle GoldenGate 23.4 through 23.26.2
Component: Config Service Executable
Deployments exposing the GoldenGate Config Service over HTTP

Discovery Timeline

2026-07-21 - CVE-2026-61106 published to the National Vulnerability Database
2026-07-21 - Last updated in NVD database
July 2026 - Addressed in the Oracle Critical Patch Update - July 2026

Technical Details for CVE-2026-61106

Vulnerability Analysis

The vulnerability resides in the Config Service Executable component of Oracle GoldenGate, a heterogeneous data replication platform used to move transactional data between databases in real time. An unauthenticated attacker reaching the Config Service over HTTP can compromise the service and take over the GoldenGate instance. The CVSS vector indicates a scope-unchanged flaw with high confidentiality, integrity, and availability impact, meaning that a successful exploit can read replicated data, alter replication configuration, and disrupt service. The EPSS probability is 0.376% with a percentile of 30.13 as of 2026-07-23, indicating limited observed exploitation activity at this time.

Root Cause

Oracle has not published detailed root-cause information beyond identifying the Config Service Executable as the affected component. The advisory characterizes exploitation as difficult, which typically indicates that specific conditions, timing, or configuration must align for the attack to succeed. See the Oracle Critical Patch Update - July 2026 for vendor-supplied details.

Attack Vector

Exploitation occurs over the network using HTTP against the GoldenGate Config Service. No credentials and no user interaction are required. Any host that can reach the Config Service listener is a potential source of attack. GoldenGate deployments that expose the Config Service beyond trusted management networks are at elevated risk. Because the impact is full takeover, an attacker who succeeds gains control over replication topology, credentials stored for source and target databases, and the ability to exfiltrate or tamper with replicated transactions.

No public proof-of-concept code is available. Refer to the Oracle Critical Patch Update - July 2026 for the authoritative technical description.

Detection Methods for CVE-2026-61106

Indicators of Compromise

Unexpected HTTP requests to the GoldenGate Config Service listener from untrusted networks or unknown source addresses
New or modified GoldenGate deployments, credentials, or extract/replicat processes that were not created by an authorized administrator
Unusual outbound connections initiated by GoldenGate service accounts or the Config Service process
Anomalous read activity against replicated tables or configuration stores immediately following Config Service access

Detection Strategies

Inspect GoldenGate Service Manager and Config Service logs for unauthenticated administrative actions or configuration changes.
Correlate HTTP access logs to the Config Service port with authenticated administrator sessions to surface anomalous requests.
Alert on process spawns and file writes originating from the Config Service Executable that deviate from a known baseline.

Monitoring Recommendations

Forward GoldenGate service, audit, and OS logs to a central data lake for retention and correlation.
Baseline normal administrator source addresses and user-agents accessing the Config Service, and alert on deviations.
Monitor the GoldenGate host for privilege escalation, new local accounts, or persistence artifacts following any suspicious Config Service traffic.

How to Mitigate CVE-2026-61106

Immediate Actions Required

Apply the fix from the Oracle Critical Patch Update - July 2026 to all Oracle GoldenGate 23.4 through 23.26.2 deployments.
Inventory every GoldenGate instance, including non-production and DR environments, and confirm patch status.
Restrict network reachability of the Config Service to trusted management subnets and administrative jump hosts.
Review Config Service and audit logs for signs of unauthorized configuration changes prior to patching.

Patch Information

Oracle addressed CVE-2026-61106 in the July 2026 Critical Patch Update. Administrators should apply the GoldenGate patch corresponding to their installed release within the affected range of 23.4 through 23.26.2. Consult the Oracle Security Alert - July 2026 for exact patch identifiers and installation instructions.

Workarounds

Place the GoldenGate Config Service behind a reverse proxy or firewall that enforces source-IP allow-listing.
Terminate HTTP and require TLS with mutual authentication for all administrative access to GoldenGate services.
Disable or shut down the Config Service on hosts where it is not required for ongoing operations until the patch is applied.