CVE-2026-55117 Path traversal in UniFi Access Application

High 8.6 Published Updated

A network-based attacker can exploit a path traversal flaw in the UniFi Access Application to read arbitrary files from the host device.

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-2026-55117?

CVE-2026-55117 is a high-severity path traversal vulnerability in Ubiquiti Inc UniFi Access Application, published on 2 Jul 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 UniFi Access Application to access files on the host device.

Weakness: CWE-22

Which versions are affected by CVE-2026-55117?

It affects 1 product.

Products include Ui Unifi Access.

How do I fix CVE-2026-55117?

No fix has been published for CVE-2026-55117 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-2026-55117 being exploited?

There is no known exploitation of CVE-2026-55117 in the wild and no public exploit code.

Sources

Also known as GHSA-qhch-3mhg-5r99.

Is CVE-2026-55117 in your software?

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