CVE-2026-22557 Path traversal in UniFi Network Application
A network-based attacker can exploit path traversal in UniFi Network Application to read system files and potentially take over accounts.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-22557?
CVE-2026-22557 is a critical path traversal vulnerability in Ubiquiti Inc UniFi Network Application, published on 19 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A malicious actor with access to the network could exploit a Path Traversal vulnerability found in the UniFi Network Application to access files on the underlying system that could be manipulated to access an underlying account.
Weakness: CWE-22
Which versions are affected by CVE-2026-22557?
How do I fix CVE-2026-22557?
No fix has been published for CVE-2026-22557 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-22557 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-22557 exists.
Public exploit code: 1 Nuclei template and 5 proofs of concept on GitHub.
Sources
Also known as GHSA-vgw4-7v5q-w7f7.