CVE-2026-39893 json
Cacti: Pre-authentication SQL injection via rfilter RLIKE clause in graph_view.php
published 2026-06-24 4 mo ago modified 2026-06-26 4 mo ago also EUVD-2026-39131
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 52%
- public exploits
- 0
- none known
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.
Patch / fix
- cacti cacti 1.2.31
- cacti Debian 14 1.2.31+ds1-1
debian advisories DEBIAN-CVE-2026-39893
- github.com/Cacti/cacti#7039 pull request
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 4 mo ago
Exploit prediction
0.67% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Cacti cacti
Classification
- Weakness
-
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command
References
-
github.com
/Cacti/cacti/pull/7039
issue-tracking, patch
-
github.com
/Cacti/cacti/security/advisories/GHSA-69gg-mjfm-jjpc
vendor-advisory
Sources
- CVE List CVE-2026-39893
- NVD CVE-2026-39893
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.