Agent Resolved Issues
Note:
Refer to the Agent Enhancements section of the release notes for general product updates and library changes. For security alerts requiring manual intervention (primarily for on-premises deployments), visit the Splunk Security Advisory portal.
| Key | Product | Summary | Severity Level | Affected Version(s) | Release Version | Release Date |
|---|---|---|---|---|---|---|
| PHP-2713 | PHP Agent | The Analytics Agent displays the 'Request contains invalid data or illegal arguments' error message because of an incorrect JSON payload from the PHP Agent. |
Medium | 25.10.0 | 26.4.0 | May 13, 2026 |
| PHP-2732 | PHP Agent | Frequent segmentation faults occur in Apache HTTPD child processes when PHP Agent is deployed with Drupal applications on RHEL using PHP 8.3 in Kubernetes. | Medium | 25.10.0 | 26.4.0 | May 13, 2026 |
| SYNTH-12177 | Private Synthetic Agent | Private Synthetic Agent in a Kubernetes environment fails to post synthetic monitoring results to the Controller. This issue is specific to certain recent versions of Kubernetes. | High | - | 26.4.1 | May 08, 2026 |
| SIM-10408 | Machine Agent | The Machine Agent fails to report Load, Availability, Network, and Process metrics, while CPU, Memory, Volume, and Partition metrics continue to report as expected. | High | 25.12.0 | 26.4.0 | May 08, 2026 |
| SIM-10443 | Machine Agent | An error occurs when you select Specific Servers on the Create Health Rule page. | Critical | - | 26.4.0 | May 08, 2026 |
| SIM-10506 | Machine Agent | When you run Analytics Agent and Machine Agent together in Kubernetes, both use the same environment variable for the access key, causing a conflict that prevents Analytics Agent from functioning correctly, if a non-default access key is set for the Machine Agent.
Resolution: To resolve this conflict, use the |
High | - | 26.4.0 | May 08, 2026 |
| SIM-10521 | Machine Agent | The Machine Agent installation on Windows fails because the JRE folder is unavailable in the build. | High | 26.3.0 | 26.4.0 | May 08, 2026 |
| JAVA-14389 | Java Agent | The Java Agent fails to instrument the latest version of Informatica (10.5.8). | High | 26.1.0 | 26.4.0 | May 06, 2026 |
| JAVA-14417 | Java Agent | Java Agent and JDK 17.0.17 compatibility issue results in duplicate class definition errors. | Medium | 26.1.0 | 26.4.0 | May 06, 2026 |
| JAVA-14469 | Java Agent | Java Agent fails to report servlet-based Business Transactions after upgrading MuleSoft to 4.9.12. | High | 26.2.0 | 26.4.0 | May 07, 2026 |
| PYTHON-1910 | Python Agent | After upgrading to Python Agent 26.4, the dl-proxy container is generating exception errors. As a result, the applications cannot start. |
Medium | 26.4.0 | 26.4.1 | April 30, 2026 |
| CLUSTERMON-6348 | Cluster Agent | The Openshift OperatorHub includes incorrect documentation links. | Medium | 26.3.0 | 26.4.0 | April 30, 2026 |
| CLUSTERMON-6226 | Cluster Agent | Cluster Agent displays incorrect CPU %Busy metrics for pods with unspecified CPU limits. | Medium | 25.12.0 | 26.4.0 | April 30, 2026 |
| COSMOX-3066 | Smart Agent | Smart Agent fails to install or upgrade the Machine Agent to version 26.3.0.5242 on Linux and Windows, halting the operation while the Smart Agent remains operational. | High | 26.3.0 | 26.4.0 | April 29, 2026 |
| COSMOSX-3061 | Smart Agent | Smart Agent fails to return descriptive error messages when Machine Agent downloads fail during install or upgrade processes. | Medium | 26.3.0 | 26.4.0 | April 29, 2026 |
| DBMON-11651 | Database Agent | MongoDB Atlas database collectors fails to report first order metrics due to permission issue. | Medium | 25.10.0 | 26.4.0 | April 28, 2026 |
| DBMON-11733 | Database Agent | There is a mismatch between the number of monitored databases and the total Database license units consumed for MongoDB. This fix may result in an upward correction in license consumption. | Medium | 26.1.0 | 26.4.0 | April 28, 2026 |
| DBMON-11703 | Database Agent | Database Agent incorrectly reports blocking session events as warnings after the critical threshold has elapsed. | Medium | 25.10.0, 26.1.0 | 26.4.0 | April 28, 2026 |
| DBMON-11680 | Database Agent | Database Agent fails to connect to DB2 database when the agent runtime is Java 11. | Medium | 26.1.0 | 26.4.0 | April 28, 2026 |
| DBMON-11670 | Database Agent | When installed as a Windows service, the Database Agent is registered as Appdynamics instead of the expected Appdynamics Database Agent. | Medium | 26.1.0 | 26.4.0 | April 28, 2026 |
| NETVIZ-497 | Network Agent | The Network Agent generates alerts when the network monitoring system reports high packet drop rates. | Medium | 26.1.0 | 26.4.0 | April 21, 2026 |
| LIBAGENT-860 | C/C++ SDK | When you upgrade C/C++ SDK, the SSL handshake fails due to certificate verification failure causing HTTP request errors and agent configuration failures. | High | 25.8.0 | 26.4.0 | April 22, 2026 |
| LIBAGENT-861 | C/C++ SDK | The C++ SDK causes temporary loss of monitoring data and delays reporting. It may also trigger connection errors related to security certificates. | Medium | 25.8.0 | 26.4.0 | April 22, 2026 |