Path traversal in Cacti - CVE-2026-39899
Published: June 19, 2026
Vulnerability identifier: #VU134959
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-39899
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: The Cacti Group, Inc.
Affected software:
Cacti
Cacti
Detailed vulnerability description
The vulnerability allows a remote user to access files outside the intended directory.
The vulnerability exists due to path traversal in the filename parameter of package_import.php when handling package import requests. A remote user can supply a crafted filename parameter to access files outside the intended directory.
How to mitigate CVE-2026-39899
Install security update from vendor's website.