CVE-2026-39902
Cacti: Authenticated RCE on Data Input
CVSS Score
7.2
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-78 |
| Vendor | cacti |
| Product | cacti |
| Published | Oct 23, 2026 |
Stay Ahead of the Next One
Get instant alerts for cacti cacti
Be the first to know when new high vulnerabilities affecting cacti cacti are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Cacti / cacti
< 1.2.31