CVE-2026-60397 Overview
CVE-2026-60397 is a partial denial-of-service vulnerability affecting the Admin Server Executable component of Oracle GoldenGate. An unauthenticated attacker with access to the adjacent network segment where Oracle GoldenGate runs can exploit the flaw. Successful exploitation degrades availability of the GoldenGate service without impacting confidentiality or integrity.
Oracle addressed the issue in the July 2026 Critical Patch Update. The vulnerability affects supported versions across the 19c, 21c, and 23c release trains. No public proof-of-concept or in-the-wild exploitation has been reported.
Critical Impact
An adjacent-network attacker can trigger a partial denial of service against Oracle GoldenGate Admin Server without authentication or user interaction.
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 23.26.1
Discovery Timeline
- 2026-07-21 - CVE-2026-60397 published to NVD
- 2026-07-21 - Last updated in NVD database
- July 2026 - Oracle publishes fix in the Oracle Security Alert July 2026
Technical Details for CVE-2026-60397
Vulnerability Analysis
The flaw resides in the Oracle GoldenGate Admin Server Executable, the management component responsible for administrative operations across GoldenGate deployments. An attacker positioned on the same physical or logical network segment as the GoldenGate host can send crafted traffic that disrupts service availability. Because the attack vector is adjacent network, the attacker must share broadcast or layer-2 reachability with the target host, ruling out purely internet-based exploitation.
Oracle categorizes the impact as partial denial of service. Confidentiality and integrity are not affected, and no data disclosure or code execution is possible through this vulnerability. The advisory does not associate the issue with a specific CWE identifier.
The attack requires no authentication, no user interaction, and low attack complexity. This lowers the operational barrier for an attacker already inside a data center or lateral-movement scenario, where GoldenGate replication traffic often crosses trusted segments.
Root Cause
Oracle has not published detailed technical root-cause information. Based on the vendor advisory, the defect lies within request handling by the Admin Server Executable, where malformed or unexpected input from an adjacent host disrupts normal service operation. Refer to the Oracle Security Alert July 2026 for vendor-supplied details.
Attack Vector
An unauthenticated attacker sends malicious traffic to the Admin Server listener from a host on the same physical communication segment. Successful delivery of the crafted request causes the Admin Server to enter a degraded state, resulting in partial denial of service. Only availability is impacted; the underlying replication data and database credentials remain intact.
No public exploit code or proof-of-concept is available. The EPSS score at publication is 0.163%, reflecting low predicted exploitation activity in the near term.
Detection Methods for CVE-2026-60397
Indicators of Compromise
- Unexplained restarts or unresponsive states of the Oracle GoldenGate Admin Server process
- Gaps or lag spikes in replication metrics without corresponding database load changes
- Anomalous inbound connections to GoldenGate administrative ports from hosts on the same subnet
Detection Strategies
- Monitor GoldenGate service health checks and alert on repeated Admin Server crashes or restarts.
- Inspect network flows to GoldenGate hosts for traffic originating from unexpected adjacent hosts.
- Correlate GoldenGate process termination events with authentication and network telemetry to identify pre-attack reconnaissance.
Monitoring Recommendations
- Enable verbose logging on the GoldenGate Admin Server and forward logs to a centralized SIEM.
- Baseline normal replication throughput and alert on sustained deviations.
- Track layer-2 access to segments hosting GoldenGate infrastructure and review ARP or DHCP anomalies.
How to Mitigate CVE-2026-60397
Immediate Actions Required
- Apply the July 2026 Oracle Critical Patch Update to all affected GoldenGate deployments.
- Inventory GoldenGate instances across 19c, 21c, and 23c release trains and prioritize internet-exposed or shared-segment hosts.
- Restrict adjacent-network access to GoldenGate Admin Server ports using host-based and network firewalls.
Patch Information
Oracle released fixes for CVE-2026-60397 in the July 2026 Critical Patch Update. Upgrade to a patched build beyond 19.30.0.0, 21.21, or 23.26.1 as published in the Oracle Security Alert July 2026. Follow standard Oracle patch validation procedures in a staging environment before production rollout.
Workarounds
- Isolate GoldenGate hosts on dedicated VLANs with strict access control lists limiting adjacent-network exposure.
- Restrict Admin Server listener bindings to trusted management interfaces only.
- Enforce 802.1X or MAC-based access control on segments hosting GoldenGate to reduce untrusted layer-2 neighbors.
# Configuration example: restrict Admin Server access via host firewall (iptables)
# Allow only trusted management host to reach the GoldenGate Admin Server port
iptables -A INPUT -p tcp --dport 9100 -s 10.10.20.5 -j ACCEPT
iptables -A INPUT -p tcp --dport 9100 -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
