EUVD-2026-62934
GHSA-2cxc-98rp-m98w
Severity by source
AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
Requires OnPrem Broker role (PR:H) to reach the network-accessible log upload endpoint; impact is limited file write outside intended directory (I:L only).
Primary rating from Vendor (cisco).
CVSS VectorVendor: cisco
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
Lifecycle Timeline
2DescriptionCVE.org
In Splunk SOAR versions below 8.6.0, a user who holds the OnPrem Broker role could write files outside the intended Automation Broker log directory. The vulnerability is possible because Automation Broker log uploads accept crafted filename input before writing log files. For more information see Manage roles and permissions in Splunk SOAR (Cloud) (https://help.splunk.com/en/splunk-soar/soar-cloud/administer-soar-cloud/manage-your-splunk-soar-cloud-users-and-accounts/manage-roles-and-permissions-in-splunk-soar-cloud) and About Splunk SOAR Automation Broker (https://help.splunk.com/en/splunk-soar/splunk-automation-broker/about-splunk-soar-automation-broker/about-splunk-soar-automation-broker) in the Splunk documentation.
AnalysisAI
Path traversal in Splunk SOAR below 8.6.0 enables users holding the OnPrem Broker role to write files to arbitrary locations outside the designated Automation Broker log directory. The flaw stems from the log upload endpoint accepting crafted filenames without adequate sanitization, allowing directory traversal sequences to escape the intended write boundary. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires authenticated access to Splunk SOAR using an account that has been explicitly assigned the OnPrem Broker role. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 2.7 (Low) is well-calibrated for this vulnerability. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who holds or has compromised a Splunk SOAR account with the OnPrem Broker role submits a log upload request with a crafted filename such as '../../etc/cron.d/backdoor', causing the SOAR platform to write attacker-controlled content to an arbitrary location on the underlying filesystem. Depending on the server's filesystem permissions and the content written, this could be chained to achieve persistence or lateral movement within the host. … |
| Remediation | Upgrade to Splunk SOAR 8.6.0 or later, which contains the vendor-released patch per advisory SVD-2026-0804 at https://advisory.splunk.com/advisories/SVD-2026-0804. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-22 – Path Traversal
View allSame technique Path Traversal
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External POC / Exploit Code
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