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 |
|---|---|---|---|---|---|---|
| DOTNET-7937 | .NET Agent | Resolved an initialization race condition that could prevent some instrumentations from creating OpenTelemetry spans in Dual Signal mode. | Medium | 26.2.0 | 26.9.0 | October 23, 2026 |
| DOTNET-7946 | .NET Agent | Resolved stack-unwinding context corruption during thread sampling on Windows x64. | Medium | All previous versions | 26.9.0 | October 23, 2026 |
| DOTNET-7698 | .NET Agent | Prevented the OpenTelemetry profiler from loading on unsupported runtimes, including .NET Framework 3.5, in Dual Signal and OpenTelemetry-only modes. | Medium | 26.2.0 | 26.9.0 | October 23, 2026 |
| PHP-2724 | PHP Agent | The PHP Agent can crash Apache with a segmentation fault when instrumenting Drupal 11 applications with deeply nested call chains. | Medium | 25.10.0 | 26.9.0 | September 30, 2026 |
| JAVA-14782 | Java Agent | Netty HTTP exit calls are not detected for Netty 4.2+ applications. | High | 26.7.0 | 26.9.0 | September 30, 2026 |
| JAVA-14667 | Java Agent | Agent internal errors still appear in the Controller when the enable-agent-internal-error node property is set to false. |
Medium | 26.6.0 | 26.9.0 | September 30, 2026 |
| JAVA-14628 | Java Agent | RabbitMQ consumers can report ClassCastException errors when JMS custom rules are configured. |
High | 25.12.0 | 26.9.0 | September 30, 2026 |
| JAVA-14625 | Java Agent | Hybrid mode doesn't work with Java 11 or later. | High | TBD | 26.9.0 | September 30, 2026 |
| JAVA-14623 | Java Agent | WildFly 32.0.1 with JDK 21 fails to start because the logging subsystem isn't initialized. | Low | 26.8.0 | 26.9.0 | September 30, 2026 |
| JAVA-14619 | Java Agent | The agent logs NullPointerExceptions while transforming classes with ClassExtensionGenerator. |
Medium | 25.9.0 | 26.9.0 | September 30, 2026 |
| JAVA-14598 | Java Agent | Kafka business transactions can repeatedly log Unable to modify/fetch headers, causing excessive log noise. |
Medium | 26.6.0 | 26.9.0 | September 30, 2026 |
| JAVA-14593 | Java Agent | Custom interceptor rules configured with the custom-interceptors-rules node property are not applied immediately after startup. |
Medium | 26.6.0 | 26.9.0 | September 30, 2026 |
| JAVA-14559 | Java Agent | Applications can fail to start with the agent, producing Could not initialize class com.sun.management.internal.OperatingSystemImpl error. |
Medium | 26.2.0 | 26.9.0 | September 30, 2026 |
| JAVA-14543 | Java Agent | JMS transaction detection requires a JVM restart when it is enabled after being disabled at startup. | Medium | 26.4.0 | 26.9.0 | September 30, 2026 |
| JAVA-14624 | Secure Application Java | Blocking policy did not enforce blocking. | Medium | 26.1.0 | 26.9.0 | September 30, 2026 |