Description
In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, a user who does not hold the "admin" or "power" Splunk roles could submit a crafted knowledge bundle delta to delete arbitrary files accessible to Splunk Enterprise on a cluster manager. This could affect system integrity and disrupt service. The vulnerability is possible because knowledge bundle delta processing does not restrict removal paths to the staging directory and the endpoint does not enforce the expected authorization boundary. For more information see Knowledge bundle replication overview (https://help.splunk.com/en/splunk-enterprise/administer/distributed-search/10.4/knowledge-bundle-replication/knowledge-bundle-replication-overview) in the Splunk documentation.
Published: 2026-08-19
Score: 5.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

This vulnerability occurs when a user who does not hold the admin or power Splunk roles submits a crafted knowledge bundle delta. The delta causes Splunk Enterprise to delete files beyond the intended staging directory because removal paths are not restricted and the endpoint does not enforce the authorization boundary. The result is deletion of arbitrary files that the Splunk cluster manager can access, compromising system integrity and potentially disrupting service availability.

Affected Systems

Splunk Enterprise versions prior to 10.4.2, 10.2.6, 10.0.9, and 9.4.14 are vulnerable to this path traversal issue.

Risk and Exploitability

The CVSS score of 5.4 indicates a moderate severity. The EPSS score is not available, and the vulnerability is not listed in the CISA KEV catalog. Attackers can exploit it by constructing a custom knowledge bundle delta and posting it to the cluster manager; the attack requires at least a normal user account, so compromised or weak accounts increase the risk. This vulnerability does not enable remote code execution, but the ability to delete arbitrary files represents a significant impact on integrity and could lead to downtime.

Generated by OpenCVE AI on August 20, 2026 at 09:50 UTC.

Remediation

Vendor Solution

Upgrade Splunk Enterprise to versions 10.4.2, 10.2.6, 10.0.9, and 9.4.14, or higher.


OpenCVE Recommended Actions

  • Upgrade Splunk Enterprise to version 10.4.2, 10.2.6, 10.0.9, or 9.4.14 or later.
  • Restrict the ability to submit knowledge bundle deltas to only admin or power roles, and revoke this capability from all other users.
  • Audit knowledge bundle submission events for anomalous file deletion requests and enforce monitoring to detect and respond to potential exploitation.

Generated by OpenCVE AI on August 20, 2026 at 09:50 UTC.

Tracking

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Advisories

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History

Fri, 21 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
First Time appeared Splunk splunk
CPEs cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:*
Vendors & Products Splunk splunk

Thu, 20 Aug 2026 00:15:00 +0000

Type Values Removed Values Added
First Time appeared Splunk
Splunk splunk Enterprise
Vendors & Products Splunk
Splunk splunk Enterprise

Wed, 19 Aug 2026 21:45:00 +0000

Type Values Removed Values Added
Description In Splunk Enterprise versions below 10.4.2, 10.2.6, 10.0.9, and 9.4.14, a user who does not hold the "admin" or "power" Splunk roles could submit a crafted knowledge bundle delta to delete arbitrary files accessible to Splunk Enterprise on a cluster manager. This could affect system integrity and disrupt service. The vulnerability is possible because knowledge bundle delta processing does not restrict removal paths to the staging directory and the endpoint does not enforce the expected authorization boundary. For more information see Knowledge bundle replication overview (https://help.splunk.com/en/splunk-enterprise/administer/distributed-search/10.4/knowledge-bundle-replication/knowledge-bundle-replication-overview) in the Splunk documentation.
Title Path Traversal through Knowledge Bundle Replication in Splunk Enterprise
Weaknesses CWE-24
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L'}


Subscriptions

Splunk Splunk Splunk Enterprise
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-08-20T16:27:35.287Z

Reserved: 2026-08-19T12:02:03.628Z

Link: CVE-2026-76353

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-08-19T22:17:20.340

Modified: 2026-08-21T19:13:59.223

Link: CVE-2026-76353

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-20T10:00:07Z

Weaknesses
  • CWE-24

    Path Traversal: '../filedir'