CVE-2026-61084 Overview
CVE-2026-61084 is a vulnerability in Oracle GoldenGate affecting the Libraries component. The flaw allows a low-privileged attacker with local logon access to the infrastructure where Oracle GoldenGate executes to compromise the product. Successful exploitation can result in unauthorized update, insert, or delete operations against a subset of GoldenGate-accessible data, along with unauthorized read access to a subset of that data.
Oracle addressed the issue in the July 2026 Critical Patch Update. The vulnerability requires local access and low privileges, but no user interaction, making it relevant for shared infrastructure and multi-tenant environments where GoldenGate replication workloads operate.
Critical Impact
Local attackers with valid low-privileged credentials can achieve partial confidentiality and integrity impact against Oracle GoldenGate data, enabling unauthorized modification of replication payloads.
Affected Products
- Oracle GoldenGate versions 19.1.0.0.0 through 19.30.0.0
- Oracle GoldenGate versions 21.3 through 21.21
- Oracle GoldenGate versions 23.4 through 23.26.2
Discovery Timeline
- 2026-07-21 - CVE CVE-2026-61084 published to NVD
- 2026-07-21 - Last updated in NVD database
- July 2026 - Oracle publishes fix in the Oracle Critical Patch Update Advisory - July 2026
Technical Details for CVE-2026-61084
Vulnerability Analysis
The vulnerability resides in the Libraries component of Oracle GoldenGate, a heterogeneous data replication platform. Oracle's advisory classifies the issue as locally exploitable with low attack complexity and low privilege requirements. Exploitation does not require user interaction, and the impact is scoped to the vulnerable component without scope change.
The advisory identifies confidentiality and integrity impacts but no availability impact. This behavior aligns with a data-access weakness in shared library code paths that manages GoldenGate replication objects rather than a memory corruption or denial-of-service condition. The EPSS score is 0.134%, reflecting low observed exploitation likelihood at publication.
Root Cause
Oracle has not published detailed root-cause information. Based on the advisory scope, the defect exists within library code shared across GoldenGate services and allows an authenticated local principal to bypass intended access boundaries on a subset of replicated data. The specific weakness class has not been mapped to a CWE by the vendor.
Attack Vector
An attacker must hold a low-privileged account with logon access to the host running Oracle GoldenGate. From that position, the attacker interacts with the vulnerable library to read or modify a subset of GoldenGate-accessible data. Remote or unauthenticated exploitation is not supported by the advisory. Refer to the Oracle Security Alert July 2026 for vendor-provided technical context.
Detection Methods for CVE-2026-61084
Indicators of Compromise
- Unexpected modifications, inserts, or deletes in GoldenGate trail files or checkpoint tables that do not correlate with scheduled replication jobs.
- Unusual local logons to GoldenGate hosts by service or low-privileged accounts outside normal maintenance windows.
- Access to GoldenGate binary and library directories by user contexts other than the designated oracle or ggate service account.
Detection Strategies
- Enable and monitor GoldenGate audit logs (ggserr.log, report files) for unauthorized parameter changes or manager restarts.
- Deploy host-based auditing (auditd on Linux, Windows Security auditing) on GoldenGate installation directories and configuration files.
- Correlate operating-system authentication events with GoldenGate process activity to identify local privilege abuse.
Monitoring Recommendations
- Baseline expected users and processes that read from $OGG_HOME and alert on deviations.
- Track integrity of shared libraries within the GoldenGate installation using file-integrity monitoring.
- Forward GoldenGate and OS audit logs into a centralized analytics platform for cross-source correlation.
How to Mitigate CVE-2026-61084
Immediate Actions Required
- Apply the July 2026 Oracle Critical Patch Update to all affected GoldenGate deployments.
- Inventory GoldenGate instances across environments to confirm which versions fall within the affected ranges.
- Restrict interactive logon on GoldenGate hosts to a minimal set of administrators using principle-of-least-privilege.
Patch Information
Oracle released fixes for CVE-2026-61084 as part of the July 2026 Critical Patch Update. Administrators should upgrade Oracle GoldenGate to a patched release beyond 19.30.0.0, 21.21, and 23.26.2 as specified in the Oracle Critical Patch Update Advisory - July 2026. Validate patch application in a staging environment before rolling to production replication topologies.
Workarounds
- Limit local shell and RDP access to GoldenGate servers to vetted administrative accounts only.
- Segregate the GoldenGate service account from general-purpose OS accounts and enforce filesystem ACLs on $OGG_HOME.
- Enable host-based access controls and OS auditing to reduce the window of exposure until patches are deployed.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
