Path traversal in Splunk Enterprise - CVE-2026-20297
Published: July 21, 2026
Vulnerability identifier: #VU138947
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-20297
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Splunk Inc.
Affected software:
Splunk Enterprise
Splunk Enterprise
Detailed vulnerability description
The vulnerability allows a remote user to write files outside the intended app directory.
The vulnerability exists due to path traversal in the App Install REST endpoint when processing a legitimate app installation through the explicit_appname parameter. A remote privileged user can supply a crafted app installation path to write files outside the intended app directory.
Exploitation requires a role that includes the edit_local_apps and install_apps capabilities, and file writes are limited to $SPLUNK_HOME/etc/ and its subdirectories.
How to mitigate CVE-2026-20297
Install security update from vendor's website.