TI-2026-53395 Aliases CVE-2026-76340 GHSA-9mp7-pwvh-jcpg

Missing Authorization for Reloading Token-Signing Keys through the REST API in Splunk Enterprise

LOW 30CWE-862Published 2026-08-19 · Updated 2026-08-26

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

In Splunk Enterprise 10.4 versions below 10.4.2, an unauthenticated user could cause Splunk Enterprise to reload token-signing keys through the Representational State Transfer (REST) API. The vulnerability does not affect Splunk Enterprise versions below 10.4. The vulnerability is possible because the REST API does not require authentication or the change_authentication capability for the token-key reload action. For more information see Define roles on the Splunk platform with capabilities (https://help.splunk.com/en/splunk-enterprise/administer/manage-users-and-security/10.4/manage-splunk-platform-users-and-roles/define-roles-on-the-splunk-platform-with-capabilities) in the Splunk documentation.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00374 31st percentileScored 2026-11-07

Fix Fixed Splunk Enterprise (Splunk): 10.4.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Splunk	Splunk Enterprise	10.4 to before 10.4.2	10.4.2	Patch available	CNA

Splunk Enterprise VendorSplunk Affected 10.4 to before 10.4.2 Fixed in 10.4.2 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:splunk:splunk:::::enterprise:::*	10.4.0 to before 10.4.2	Vulnerable	Splunk

cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* Versions 10.4.0 to before 10.4.2 Vulnerable ·Splunk

Remediation

Fix · CNA Splunk Enterprise (Splunk) Fixed in 10.4.2

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-08-19
Splunk Enterprise 10.4.2
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2026-53410 Unauthenticated Information Disclosure through an Edge Processor Service Endpoint in Splunk EnterprisePriority LOW 39
- TI-2026-53362 Exposure of Sensitive Information to an Unauthorized Actor through the REST API in Splunk EnterprisePriority LOW 39
- TI-2026-53400 Remote Code Execution (RCE) through the REST API in Splunk EnterprisePriority LOW 27
Show all 4 records →

Timeline

2026-10-02 Threatist record created from CVE-2026-76340
2026-10-03 Alias added: GHSA-9mp7-pwvh-jcpg

References

Advisory 1

https://advisory.splunk.com/advisories/SVD-2026-0801

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