Cacti is an open source performance and fault management framework. Prior to version 1.2.31, the prior blocklist ([;&| `$\\n\r]) omitted single-quote, double-quote, redirect operators, subshell parens and braces. An authenticated admin could save an input_string` containing single-quote, redirect operator, or subshell parens, and pass the check. This issue has been patched in version 1.2.31.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Cacti is an open source performance and fault management framework. Prior to version 1.2.31, the prior     blocklist ([;&| `$\\n\r]) omitted single-quote, double-quote, redirect operators, subshell parens and     braces. An authenticated admin could save an input_string` containing single-quote, redirect operator, or     subshell parens, and pass the check. This issue has been patched in version 1.2.31. (CVE-2026-39902)

Note that Nessus relies on the presence of the package as reported by the vendor.

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 9647af6d-7a05-11f1-99fc-40b034429ecf advisory.

    Cacti project reports:
    This release includes fixes for a number of vulnerabilities that were responsibly disclosed by external     researchers

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Type	Severity
371714	Linux Distros Unpatched Vulnerability : CVE-2026-39902	Nessus	Misc.	Local	high
325775	FreeBSD : cacti -- multiple vulnerabilities (9647af6d-7a05-11f1-99fc-40b034429ecf)	Nessus	FreeBSD Local Security Checks	Local	critical

Detections

Analytics

CVE-2026-39902

high

Tenable Plugins

high

critical