CVE-2026-39899 Cacti: Path Traversal via filename parameter in package_import.php
Attackers can exploit a path traversal vulnerability in Cacti's package import feature to read or modify arbitrary files on the server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-39899?
CVE-2026-39899 is a medium-severity path traversal vulnerability in Cacti Cacti, published on 24 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior are vulnerable to Path Traversal via filename parameter in package_import.php. This issue has been fixed in version 1.2.31.
Weakness: CWE-22
Which versions are affected by CVE-2026-39899?
It affects 1 product.
Products include Cacti Cacti.
How do I fix CVE-2026-39899?
Upgrade to a fixed version.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-39899 being exploited?
There is no known exploitation of CVE-2026-39899 in the wild and no public exploit code.
Other vulnerabilities in Cacti Cacti
- CVE-2022-46169 Cacti Command Injection
- CVE-2026-39893 Cacti: Pre-authentication SQL injection via rfilter RLIKE clause in graph_view.php
- CVE-2026-39938 Cacti: Unauthenticated RCE on Graph Image
- CVE-2026-39955 Cacti has Pre-Authentication SQL Injection via unanchored FILTER_VALIDATE_REGEXP in graph_view.php
- CVE-2023-39361 Unauthenticated SQL Injection in graph_view.php in Cacti
Sources
Also known as DEBIAN-CVE-2026-39899, GHSA-pr9x-34w8-4mf7, UBUNTU-CVE-2026-39899.