CVE-2026-76359

Received Received - Intake

Path Traversal in Splunk SOAR Universal Forwarder

Publication date: 2026-08-19

Last updated on: 2026-08-19

Assigner: Cisco Systems, Inc.

Description

In Splunk SOAR versions below 8.6.0, a user who holds the Administrator role could use path traversal in the Universal Forwarder installer's archive extraction to write files outside the intended installation directory. The vulnerability is possible because the Universal Forwarder credentials-package extraction workflow does not verify that each archive member remains within the intended destination before extraction. For more information see Manage roles and permissions in Splunk SOAR (On-premises) (https://help.splunk.com/en/splunk-soar/soar-on-premises/administer-soar-on-premises/8.5.0/manage-your-splunk-soar-on-premises-users-and-accounts/manage-roles-and-permissions-in-splunk-soar-on-premises) and Configure forwarders to send SOAR data to your Splunk deployment (https://help.splunk.com/en/splunk-soar/soar-on-premises/administer-soar-on-premises/8.5.0/configure-administration-settings-in-splunk-soar-on-premises/configure-forwarders-to-send-soar-data-to-your-splunk-deployment) in the Splunk documentation.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-08-19

Last Modified

2026-08-19

Generated

2026-08-20

AI Q&A

2026-08-20

EPSS Evaluated

N/A

NVD

CVE-2026-76359

EUVD

EUVD-2026-62924

Affected Vendors & Products

Vendor	Product	Version / Range
splunk	splunk_soar	to 8.6.0 (exc)
splunk	universal_forwarder	to 8.6.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-22	The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

Executive Summary

This vulnerability affects Splunk SOAR versions below 8.6.0. A user with the Administrator role can exploit path traversal during the Universal Forwarder installer's archive extraction to write files outside the intended installation directory. The issue occurs because the extraction workflow does not verify that archive members stay within the correct destination before extraction.

Impact Analysis

An attacker with Administrator privileges could overwrite critical system files, install malicious software, or disrupt operations by placing files in unintended locations. This could lead to unauthorized access, data corruption, or service disruptions in the Splunk SOAR environment.

Compliance Impact

This vulnerability could lead to unauthorized file access or modification, potentially violating data integrity and confidentiality requirements under GDPR and HIPAA. Compliance may be impacted if sensitive data is exposed or altered due to the exploitation of this flaw.

Mitigation Strategies

Upgrade Splunk SOAR to version 8.6.0 or higher to address the path traversal vulnerability in the Universal Forwarder installer.

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