CVE-2026-39893 | Cacti is an open source performance and fault management fra… | CVSS 9.8 CRITICAL

Description

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.

Metadata

CVE ID: CVE-2026-39893
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-04-07 20:32 UTC
Published: 2026-06-24 21:45 UTC
Last updated: 2026-06-24 21:45 UTC
Primary CWE: CWE-89
CWE-89: Improper Neutralization of Special Elements used in …
Vendor / Product: Cacti / cacti
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products (1)

Vendor	Product	Platform	Versions
Cacti	cacti	—	< 1.2.31

Weakness (CWE)

CWE	Source	Description
CWE-89	cna	CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (2)

https://github.com/Cacti/cacti/security/advisories/GHSA-69gg-mjfm-jjpc https://github.com/Cacti/cacti/security/advisories/GHSA-69gg-mjfm-jjpc
https://github.com/Cacti/cacti/pull/7039 https://github.com/Cacti/cacti/pull/7039