CVE-2026-76261
MediumCVSS 5.3Summary
In Splunk Enterprise below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, and Splunk Secure Gateway below 3.10.9, 3.9.23, and 3.8.70, a user without 'admin' or 'power' roles can read Spacebridge private keys via the Key Value Store REST API. The vulnerability occurs on instances upgraded from older versions when private-key migration is incomplete, leaving keys in a collection with an insecure default ACL.
Risk Assessment
Exposure of Spacebridge private keys could allow an attacker to impersonate trusted components and compromise communication integrity.
Recommendation
Upgrade Splunk Enterprise and Splunk Secure Gateway to patched versions. Ensure private-key migration is complete and secure collections with proper access control lists.
Original NVD description (English source)
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.