CVE-2026-40084

Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior are vulnerable to Path Traversal through the Report format_file Parameter, causing arbitrary file read. This vulnerability occurs in two stages. In the first stage (stored injection), lib/html_reports.php at line 283 stores $save['format_file'] = $post['format_file'] directly into the database without any validation. In the second stage (file read), lib/reports.php at line 667 concatenates CACTI_PATH_FORMATS . '/' . $format_file, and line 670 then calls file($format_file), reading arbitrary files from the filesystem. This issue has been fixed in version 1.2.31.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/Cacti/cacti/commit/4c09efaebf3a9faec66969d0b5c4aceaf397f37f	Patch
https://github.com/Cacti/cacti/security/advisories/GHSA-mjvw-mhj5-9jcj	Exploit Mitigation Vendor Advisory
https://github.com/Cacti/cacti/security/advisories/GHSA-mjvw-mhj5-9jcj	Exploit Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:cacti:cacti:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-06-25 23:17

Updated : 2026-06-29 18:48

NVD link : CVE-2026-40084

Mitre link : CVE-2026-40084

CVE.ORG link : CVE-2026-40084

JSON object : View

Products Affected

cacti

cacti

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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