CVE-2026-76261

Medium

Description

In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, and Splunk Secure Gateway versions below 3.10.9, 3.9.23, and 3.8.70, a user who does not hold the "admin" or "power" Splunk roles could read Spacebridge asymmetric private keys, which are secrets that compromise affected Spacebridge private-key material stored in the app collection, through the Splunk Secure Gateway App Key Value Store Representational State Transfer (REST) API. The vulnerability is possible on instances upgraded from older Splunk Secure Gateway deployments when the private-key migration remains incomplete, leaving key material in a collection with an insecure default access control list.

SeverityMedium
CVSS5.3
Exploit probability—
ProductSplunk
PublishedAug 19, 2026
First seenAug 19, 2026
Weakness typeCWE-732CWE-732

How to fix

Update
  • splunk splunk9.4.14, 10.0.9, 10.2.6, 10.4.2 or later
  • splunk splunk_secure_gateway3.8.70, 3.9.23, 3.10.9 or later

Affected products

ProductAffected versionsFixed in
splunk splunk9.4.0 ≤ v < 9.4.14, 10.0.0 ≤ v < 10.0.9, 10.2.0 ≤ v < 10.2.6, 10.4.0 ≤ v < 10.4.29.4.14, 10.0.9, 10.2.6, 10.4.2
splunk splunk_secure_gateway3.8.0 ≤ v < 3.8.70, 3.9.0 ≤ v < 3.9.23, 3.10.0 ≤ v < 3.10.93.8.70, 3.9.23, 3.10.9

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CVE-2026-76261 · Splunk · Dark Radar