OS Command Injection in Cacti - CVE-2026-39902
Published: July 28, 2026
Vulnerability identifier: #VU139916
CSH Severity: Low
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-39902
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code.
The vulnerability exists due to command injection in data input when processing user-supplied input. A remote privileged user can send specially crafted input to execute arbitrary code.
Affected software
Cacti
How to mitigate CVE-2026-39902
Install security update from vendor's website.
Cacti - update to 1.2.31