Medium severity · published Oct 7, 2026
CVE-2026-76265
Improper Access Control through REST API Endpoints in Splunk Secure Gateway
6.5
CVSS
0.3%
EPSS
No
On KEV
Description
In Splunk Enterprise versions below 10.4.3, 10.2.7, 10.0.10, and 9.4.15, and Splunk Secure Gateway versions below 3.10.11, 3.9.25, and 3.8.72, a user who does not hold the "admin" or "power" Splunk roles could access privileged Splunk Secure Gateway functionality. With this access, the user could cause Splunk Secure Gateway to sign attacker-controlled payloads. The vulnerability is possible because multiple Splunk Secure Gateway Representational State Transfer (REST) API endpoints do not enforce authorization requirements before processing requests.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
Splunk Enterprise · Splunk
10.4 before 10.4.3; 10.2 before 10.2.7; 10.0 before 10.0.10; 9.4 before 9.4.15 · source: vendor
SS
Splunk Secure Gateway · Splunk
3.10 before 3.10.11; 3.9 before 3.9.25; 3.8 before 3.8.72 · source: vendor, NVD
SP
Splunk · Splunk
9.4.0 before 9.4.15; 10.0.0 before 10.0.10; 10.2.0 before 10.2.7; 10.4.0 before 10.4.3 · source: NVD
Affected product
SE
Splunk Enterprise
Splunk
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