Path traversal in Cacti - CVE-2026-40084
Published: June 22, 2026
Vulnerability identifier: #VU134991
CSH Severity: Low
CVSS v4: 7.1 [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]
CVE-ID: CVE-2026-40084
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to path traversal in the report format_file parameter handling in lib/html_reports.php and lib/reports.php when saving and loading report definitions. A remote user can submit a specially crafted format_file value and then generate or view the report to disclose sensitive information.
Exploitation requires report management permission in realm 22.
Affected software
Cacti
How to mitigate CVE-2026-40084
Install security update from vendor's website.
Cacti - update to 1.2.31