CVE-2026-54403
Received Received - Intake

Path Traversal in UniFi OS Devices

Publication date: 2026-07-02

Last updated on: 2026-07-02

Assigner: HackerOne

Description
A malicious actor with access to the network could exploit a Path Traversal vulnerability found in certain devices running UniFi OS to bypass authentication of such UniFi OS devices or instances.

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Meta Information

Published
2026-07-02
Last Modified
2026-07-02
Generated
2026-07-02
AI Q&A
2026-07-02
EPSS Evaluated
N/A
NVD
CVE-2026-54403
EUVD
EUVD-2026-41381

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
ubiquiti unifi_os *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-22 The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

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Executive Summary

This vulnerability is a Path Traversal flaw found in certain devices running UniFi OS. A malicious actor who has access to the network can exploit this flaw to bypass the authentication mechanisms of these UniFi OS devices or instances.

Impact Analysis

Exploiting this vulnerability allows an attacker to bypass authentication on UniFi OS devices, potentially gaining unauthorized access to the device or system. This could lead to unauthorized control or manipulation of the device, compromising its security.

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