Read the docs
TI-2026-79024 Aliases CVE-2026-76298GHSA-jj4w-fcgh-mh9q

Hard-coded cryptographic key in Splunk Enterprise PostgreSQL sidecar

Priority MEDIUM 40CWE-321Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-321.

Summary

Splunk Enterprise from 10.4 before 10.4.4 and from 10.2 before 10.2.8 is affected. The PostgreSQL sidecar service derives a privileged database password from the search head cluster identifier, which appears in search job logs (CWE-321). A user without the admin or power role can derive the sidecar database superuser password and run arbitrary operating system commands as the account running Splunk Enterprise on search head cluster members.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00353 29th percentileScored 2026-11-07
Fix Fixed Splunk Enterprise (Splunk): 10.4.4, 10.2.8

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SplunkSplunk Enterprise10.4 to before 10.4.4; 10.2 to before 10.2.810.4.4, 10.2.8Patch availableCNA
  • Splunk Enterprise VendorSplunk Affected 10.4 to before 10.4.4; 10.2 to before 10.2.8 Fixed in 10.4.4, 10.2.8 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*10.2.0 to before 10.2.8; 10.4.0 to before 10.4.4VulnerableSplunk
  • cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* Versions 10.2.0 to before 10.2.8; 10.4.0 to before 10.4.4 Vulnerable ·Splunk

Remediation

Upgrade Splunk Enterprise to version 10.4.4 or 10.2.8, which fix the issue. The sources list no advisory identifier for this fix.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Splunk Enterprise (Splunk) Fixed in 10.4.4, 10.2.8

Timeline

  1. 2026-10-21 Threatist record created from CVE-2026-76298
  2. 2026-10-22 Alias added: GHSA-jj4w-fcgh-mh9q
  3. 2026-10-22 CISA SSVC decision points changed
  4. 2026-10-22 Priority changed: MEDIUM → LOW
  5. 2026-10-23 CISA SSVC decision points changed
  6. 2026-10-23 Priority changed: LOW → MEDIUM

References

Advisory 1

  • TI-2026-16444 Unauthenticated Arbitrary File Creation and Truncation in a PostgreSQL Sidecar Service Endpoint in Splunk Enterprise KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-00154 The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly… KEVCVSS 3.1HIGH 7.5
  • TI-2023-24841 Remote code execution (RCE) in Splunk Enterprise through Insecure XML Parsing CVSS 3.1HIGH 8.8
  • TI-2023-15979 ‘edit_user’ Capability Privilege Escalation CVSS 3.1HIGH 8.8
  • TI-2024-30707 Remote Code Execution (RCE) due to insecure session storage configuration in Splunk Enterprise on Windows CVSS 3.1HIGH 8.8
  • TI-2022-21345 Reflected Cross-Site Scripting via the radio template in Splunk Enterprise CVSS 3.1HIGH 8.8
See all 297 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences