Authenticated RCE via unauthorized bundle upload
Published Aug 19, 2026 · Updated Aug 21, 2026
Improper access control in Splunk Enterprise before 10.4.2, 10.2.6, 10.0.9, and 9.4.14 allows remote authenticated users to execute code. The REST API endpoint for knowledge bundle upload does not enforce the high-privilege edit_dist_peer capability, and distributed search accepts caller-supplied bundle selections, letting a low-privileged account deliver a malicious bundle to search peers. Exploitation requires valid credentials for a user without the admin or power roles and a distributed-search path that consumes the uploaded bundle, after which search-peer execution can expose relevant data and compromise integrity and availability.
Summary
What happened
Improper access control in Splunk Enterprise before 10.4.2, 10.2.6, 10.0.9, and 9.4.14 allows remote authenticated users to execute code. The REST API endpoint for knowledge bundle upload does not enforce the high-privilege edit_dist_peer capability, and distributed search accepts caller-supplied bundle selections, letting a low-privileged account deliver a malicious bundle to search peers. Exploitation requires valid credentials for a user without the admin or power roles and a distributed-search path that consumes the uploaded bundle, after which search-peer execution can expose relevant data and compromise integrity and availability.
The record
- CVE
- CVE-2026-76313
- Published
- Aug 19, 2026
- Updated
- Aug 21, 2026
- Vendor
- Zoom Video Communications, Inc.
- Product
- Splunk Enterprise
- Classifications
- CWE-284, T1068
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 19, 2026CVE publishedPublication date reported by the CVE source.
- Aug 21, 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
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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