The vulnerability is possible because the PostgreSQL sidecar service derives a privileged database password from the search head cluster identifier that appears in search job logs.
For more information see About configuring role-based user access (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.2/manage-splunk-platform-users-and-roles/about-configuring-role-based-user-access), server.conf (https://help.splunk.com/en/splunk-enterprise/administer/admin-manual/10.2/configuration-file-reference/10.2.0-configuration-file-reference/server.conf), and Sidecar configuration settings (https://help.splunk.com/en/splunk-enterprise/administer/admin-manual/10.4/splunk-sidecars/sidecar-configuration-settings) in the Splunk documentation.
Analysis and contextual insights are available on OpenCVE Cloud.
Vendor Solution
Upgrade Splunk Enterprise to versions 10.4.4, 10.2.8, 10.0.11, and 9.4.16 or higher.
Vendor Workaround
If you cannot immediately upgrade to a fixed version, turn off the PostgreSQL sidecar service. Add the following stanza in the `server.conf` configuration file: `[postgres]` `disabled = true`. Restart Splunk Enterprise for the change to take effect. Do not apply this workaround if you use Edge Processor, OpAmp, or SPL2 data pipelines on the instance. Turning off PostgreSQL breaks these features and can cascade to dependent sidecar processes. Core search, indexing, and dashboard functionality are not affected. For more information see [Sidecar configuration settings](https://help.splunk.com/en/splunk-enterprise/administer/admin-manual/10.4/splunk-sidecars/sidecar-configuration-settings) in the Splunk documentation.
Tracking
Sign in to view the affected projects.
No advisories yet.
| Link | Providers |
|---|---|
| https://advisory.splunk.com/advisories/SVD-2026-1007 |
|
Thu, 22 Oct 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Thu, 22 Oct 2026 08:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Splunk
Splunk splunk Enterprise |
|
| Vendors & Products |
Splunk
Splunk splunk Enterprise |
Wed, 21 Oct 2026 23:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In Splunk Enterprise versions below 10.4.4 and 10.2.8, a user who does not hold the "admin" or "power" Splunk roles could derive the PostgreSQL sidecar database superuser password and run arbitrary operating system commands as the user account running Splunk Enterprise on search head cluster members. The vulnerability is possible because the PostgreSQL sidecar service derives a privileged database password from the search head cluster identifier that appears in search job logs. For more information see About configuring role-based user access (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.2/manage-splunk-platform-users-and-roles/about-configuring-role-based-user-access), server.conf (https://help.splunk.com/en/splunk-enterprise/administer/admin-manual/10.2/configuration-file-reference/10.2.0-configuration-file-reference/server.conf), and Sidecar configuration settings (https://help.splunk.com/en/splunk-enterprise/administer/admin-manual/10.4/splunk-sidecars/sidecar-configuration-settings) in the Splunk documentation. | |
| Title | Use of Hard-coded Cryptographic Key in the PostgreSQL Sidecar Service in Splunk Enterprise | |
| Weaknesses | CWE-321 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: cisco
Published:
Updated: 2026-10-22T13:37:47.831Z
Reserved: 2026-08-19T12:02:03.623Z
Link: CVE-2026-76298
Updated: 2026-10-22T13:33:23.963Z
Status : Received
Published: 2026-10-21T23:17:27.817
Modified: 2026-10-22T14:17:45.110
Link: CVE-2026-76298
No data.
OpenCVE Enrichment
Updated: 2026-10-22T08:30:03Z