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TI-2026-28909 Aliases CVE-2026-40079

Cacti: Command Injection via escape_command() no-op in RRDtool execution

Priority MEDIUM 49CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0169 77th percentileScored 2026-11-07
Fix Fixed cacti (Cacti): 1.2.31

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Cacticactibefore 1.2.311.2.31Patch availableCNA
  • cacti VendorCacti Affected before 1.2.31 Fixed in 1.2.31 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cacti:cacti:*:*:*:*:*:*:*:*before 1.2.31VulnerableCacti
  • cpe:2.3:a:cacti:cacti:*:*:*:*:*:*:*:* Versions before 1.2.31 Vulnerable ·Cacti

Remediation

  • Fix · CNA cacti (Cacti) Fixed in 1.2.31

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-40079

References

Patch 2

  • TI-2022-22813 Unauthenticated command injection in cacti KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-20500 Unauthenticated SQL Injection in graph_view.php in Cacti CVSS 3.1CRITICAL 9.8
  • TI-2024-16869 Cacti RCE vulnerability when importing packages CVSS 3.1CRITICAL 9.1
  • TI-2024-20809 SQL Injection vulnerability in automation_get_new_graphs_sql CVSS 3.1HIGH 8.8
  • TI-2023-26750 Cacti SQL Injection vulnerability CVSS 3.1HIGH 8.8
  • TI-2025-18110 Cacti allows Arbitrary File Creation leading to RCE CVSS 4.0HIGH 8.7
See all 151 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences