PT-2026-52137 · Cacti · Cacti

Published 2026-06-24 · Updated 2026-06-24 · CVE-2026-39948

NVD

CVSS v4.0

9.3

Critical

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Cacti is an open source performance and fault management framework. In versions 1.2.30 and prior, the rfilter request parameter is retrieved via the raw accessor grv() (rather than gfrv() with FILTER VALIDATE IS REGEX validation) and concatenated directly into RLIKE SQL clauses in lib/html graph.php and lib/html tree.php, which are reachable pre-authentication through graph view.php on installations with guest graph viewing enabled. Because the unbalanced-quote payload bypasses the regex validation that would otherwise reject it, an unauthenticated attacker can inject arbitrary SQL to compromise the confidentiality, integrity, and availability of the database. This advisory is similar to GHSA-69gg-mjfm-jjpc. This issue has been fixed in version 1.2.31.

Fix

SQL injection

Weakness Enumeration

CWE-89

Related Identifiers

CVE-2026-39948

Affected Products

Cacti

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-39948 · Security Note
• https://github.com/Cacti/cacti/commit/136ae6ef0715e77bca69c0eb60781f5e17df0795 · Note
• https://github.com/Cacti/cacti/security/advisories/GHSA-9jqv-4cpm-vm2c · Note