CVE-2026-40079
Cacti: Command Injection via escape_command() no-op in RRDtool execution
Description
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.
INFO
Published Date :
June 24, 2026, 11:26 p.m.
Last Modified :
June 24, 2026, 11:26 p.m.
Remotely Exploit :
No
Source :
GitHub_M
Affected Products
The following products are affected by CVE-2026-40079
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update Cacti to version 1.2.31 or later.
- Verify proper sanitization of input.
- Restrict user access to graph templates.
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CVE-2026-40079 vulnerability anywhere in the article.