Unauthorized Data Modification in Splunk Enterprise and Secure Gateway
CVE-2026-76280

6.3MEDIUM

Key Information:

Vendor

Splunk
Status
Splunk Enterprise
Splunk Secure Gateway
Vendor
CVE Published:
7 October 2026

What is CVE-2026-76280?

In several versions of Splunk Enterprise and Splunk Secure Gateway, an authenticated user lacking sufficient permissions can alter alert and mobile-device recipient data within collections of the App Key Value Store. This vulnerability arises due to improperly configured access controls, allowing unrestricted write access in crucial data workflows. As a result, these unauthorized changes can have serious implications for alert and subscription processes. Proper role-based access management is essential to prevent such exploitation.

Affected Version(s)

Splunk Enterprise 10.4 < 10.4.3

Splunk Enterprise 10.2 < 10.2.7

Splunk Enterprise 10.0 < 10.0.10

References

https://advisory.splunk.com/advisories/SVD-2026-1001

CVSS V3.1

Score:
6.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

M Mahdan Argya Syarif (0xbeludan)
.