CVE-2026-39893

critical · 9.8

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.

9.8

CVSS

0.7%

EPSS (exploit prob.)

51st

EPSS percentile

2026-06-24

Published

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

Weaknesses

CWE-89

Affected products

Vendor	Product	Affected versions
cacti	cacti	< 1.2.31

Check a specific version with /api/v1/cve/match.

References

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-39893