SQL injection in Cacti - CVE-2026-39893
Published: June 22, 2026
Vulnerability identifier: #VU134985
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-39893
CWE-ID: CWE-89
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary SQL commands.
The vulnerability exists due to SQL injection in graph_view.php when processing the rfilter request variable in graph filter requests. A remote attacker can send a specially crafted request to execute arbitrary SQL commands.
The issue is reachable without authentication on installations with guest viewing enabled.
Affected software
Cacti
How to mitigate CVE-2026-39893
Install security update from vendor's website.
Cacti - update to 1.2.31