Vulnerability · Published Jun 24, 2026 · Assigned by GitHub_M
CVE-2026-39955Cacti has Pre-Authentication SQL Injection via unanchored FILTER_VALIDATE_REGEXP in graph_view.php
Critical 9.8
In plain English
A critical-severity SQL injection in cacti from Cacti. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.6%top 51.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior have pre-authentication SQL Injection via unanchored FILTER_VALIDATE_REGEXP in graph_view.php. This issue has been fixed in version 1.2.31.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | cacti | no fix listed | DEBIAN-CVE-2026-39955 |
| Debian:13 | cacti | no fix listed | DEBIAN-CVE-2026-39955 |
| Debian:14 | cacti | 1.2.31+ds1-1 | DEBIAN-CVE-2026-39955 |
| Ubuntu:24.04:LTS | cacti | no fix listed | UBUNTU-CVE-2026-39955 |
| Ubuntu:25.10 | cacti | no fix listed | UBUNTU-CVE-2026-39955 |
| Ubuntu:26.04:LTS | cacti | no fix listed | UBUNTU-CVE-2026-39955 |
| Ubuntu:26.10 | cacti | no fix listed | UBUNTU-CVE-2026-39955 |
Affected products (as reported)
Weakness: CWE-89 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://github.com/Cacti/cacti/security/advisories/GHSA-gp82-qhrg-crv7 x_refsource_CONFIRM
- https://github.com/Cacti/cacti/commit/4c09efaebf3a9faec66969d0b5c4aceaf397f37f x_refsource_MISC