CVE-2026-40079

Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior are vulnerable to Command Injection due to lack of sanitization in the escape_command() function. The escape_command() function at lib/rrd.php is a no-op: it returns $command unchanged. The command line built by rrdtool_function_graph() is passed through this function and then to shell_exec($full_commandline). The risk is in __rrd_execute() where text_format values from graph templates (which may contain host variable substitutions) reach shell_exec without adequate escaping. This issue has been addressed in version 1.2.31.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/Cacti/cacti/commit/4c09efaebf3a9faec66969d0b5c4aceaf397f37f	Patch
https://github.com/Cacti/cacti/security/advisories/GHSA-xq98-376r-hv9j	Mitigation Patch Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2026-06-25 00:17

Updated : 2026-06-26 00:16

NVD link : CVE-2026-40079

Mitre link : CVE-2026-40079

CVE.ORG link : CVE-2026-40079

JSON object : View

Products Affected

cacti

cacti

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CWE-88

Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

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