Pre-authentication SQL Injection Vulnerability in Cacti Framework
CVE-2026-39955

9.8CRITICAL

Key Information:

Vendor

Cacti

Status
Cacti
Vendor
CVE Published:
24 June 2026

What is CVE-2026-39955?

Cacti, an open source performance and fault management framework, suffers from a pre-authentication SQL Injection vulnerability due to unanchored FILTER_VALIDATE_REGEXP in the graph_view.php file. This flaw allows attackers to manipulate SQL queries before authentication, potentially leading to unauthorized access to sensitive data. The issue is resolved in version 1.2.31, and users are encouraged to upgrade to this version or later to maintain system integrity.

Affected Version(s)

cacti < 1.2.31

References

https://github.com/Cacti/cacti/security/advisories/GHSA-g...
x_refsource_CONFIRM
https://github.com/Cacti/cacti/commit/4c09efaebf3a9faec66...
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.