CVE-2026-39893
Cacti: Pre-authentication SQL injection via rfilter RLIKE clause in graph_view.php
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.
INFO
Published Date :
June 24, 2026, 9:45 p.m.
Last Modified :
June 24, 2026, 9:45 p.m.
Remotely Exploit :
No
Source :
GitHub_M
Affected Products
The following products are affected by CVE-2026-39893
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update Cacti to version 1.2.31.
- Ensure guest user access is restricted if needed.
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CVE-2026-39893 vulnerability anywhere in the article.