TI-2026-28771 Aliases CVE-2026-39893

Cacti: Pre-authentication SQL injection via rfilter RLIKE clause in graph_view.php

MEDIUM 50CWE-89Published 2026-06-24 · Updated 2026-06-26

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: SQL injection
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-89.

Summary

Cacti is an open source performance and fault management framework. In versions 1.2.30 and prior, the rfilter request variable was concatenated into a RLIKE SQL clause without sanitization. The endpoint does not require authentication (graph viewing supports guest access via the configured guest user), so the SQLi was reachable pre-auth on installs with guest viewing enabled. This issue was fixed in version 1.2.31.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00674 52nd 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

Vendor	Product	Affected versions	Fixed in	Status	Source
Cacti	cacti	before 1.2.31	1.2.31	Patch available	CNA

cacti VendorCacti Affected before 1.2.31 Fixed in 1.2.31 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:cacti:cacti::::::::	before 1.2.31	Vulnerable	Cacti

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

Remediation

Fix · CNA cacti (Cacti) Fixed in 1.2.31

Timeline

2026-10-02 Threatist record created from CVE-2026-39893

References

Patch 1

https://github.com/Cacti/cacti/pull/7039

Advisory 1

https://github.com/Cacti/cacti/security/advisories/GHSA-69gg-mjfm-jjpc

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