Splunk Heavy Forwarder Vulnerability Findings for MongoDB, OpenSSL, and PostgreSQL Dependencies

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Updated:October 29, 2026
Document ID:SPLK055909

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Applicability

Splunk Cloud Splunk Enterprise

Description

Vulnerability scanning tools identified findings related to MongoDB, OpenSSL, and PostgreSQL libraries within Splunk Heavy Forwarder environments.

A request was made for:

  • Availability of fixes or maintenance releases.
  • Target versions containing remediation.
  • Expected release timelines.
  • Recommended mitigation steps while permanent remediation was under evaluation.

The findings were impacting internal vulnerability management, remediation planning, and compliance tracking activities.


Investigation

The reported findings were reviewed with the internal teams responsible for vulnerability management and remediation efforts.

The investigation determined that vulnerability scanners may identify legacy libraries and artifacts that remain on systems following upgrades. These components can continue to appear in scan results even when they are no longer actively used by Splunk services.

The MongoDB findings were reviewed and a mitigation strategy was provided. After implementation and validation, no operational impact was reported and Splunk functionality continued to operate as expected.

The OpenSSL and PostgreSQL findings were also reviewed. Engineering guidance indicated that the next step was to validate whether the files reported by the scanner were actively required by Splunk or were legacy components remaining from historical upgrades.

During the investigation, no committed ETA, target release version, or fix pack information was available for the OpenSSL and PostgreSQL findings. Release details would be communicated through official release notes once engineering validation and release planning activities were completed.


Resolution

A workaround was provided to validate whether the MongoDB, OpenSSL, and PostgreSQL libraries identified by vulnerability scanners were actively required by the deployment.

  1. Stop Splunk services.
  2. Move or rename the reported files or directories outside the Splunk installation path.
  3. Start Splunk services.
  4. Confirm successful startup and validate normal platform functionality.
  5. Review splunkd.log for startup errors or dependency-related warnings.
  6. Remove the backup files if validation is successful.

This process allows validation of whether the reported libraries are actively used by Splunk while maintaining a rollback option if required.

The MongoDB mitigation was successfully implemented and validated without any reported issues.

No product malfunction was identified during the investigation. At the time of resolution, no committed remediation release, fix pack, or ETA was available for the OpenSSL and PostgreSQL findings. Any future remediation details would be communicated through official Splunk release notes once approved for release.

 

Revision History

Revision Publish Date Comments
1.0
29-Oct-2026
Initial Release

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