Private key disclosure via insecure KV Store ACL
Published Aug 19, 2026 · Updated Aug 19, 2026
Improper access control in Splunk Secure Gateway before 3.10.9, 3.9.23, and 3.8.70 lets remote authenticated users read Spacebridge private keys. On upgraded instances where private-key migration remains incomplete, the app leaves Spacebridge asymmetric private-key material in an app KV Store collection protected by an insecure default ACL, and the REST API exposes that collection to users without the admin or power roles. Reachability requires authenticated low-privileged access and the incomplete migration state; the consequence is disclosure of key material rather than direct data modification or service interruption.
Summary
What happened
Improper access control in Splunk Secure Gateway before 3.10.9, 3.9.23, and 3.8.70 lets remote authenticated users read Spacebridge private keys. On upgraded instances where private-key migration remains incomplete, the app leaves Spacebridge asymmetric private-key material in an app KV Store collection protected by an insecure default ACL, and the REST API exposes that collection to users without the admin or power roles. Reachability requires authenticated low-privileged access and the incomplete migration state; the consequence is disclosure of key material rather than direct data modification or service interruption.
The record
- CVE
- CVE-2026-76261
- Published
- Aug 19, 2026
- Updated
- Aug 19, 2026
- Vendor
- Zoom Video Communications, Inc.
- Product
- Splunk Enterprise
- Classifications
- CWE-732, T1552.004
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 19, 2026CVE publishedPublication date reported by the CVE source.
- Aug 19, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0 <10.0.9
- Affected versionversion=10.2 <10.2.6
- Affected versionversion=10.4 <10.4.2
- Affected versionversion=9.4 <9.4.14
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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