CVE-2026-55110
UniFi OS CORS Misconfiguration Vulnerability
Description
A malicious actor who lures an authenticated user to a malicious page could exploit a Cross-Origin Resource Sharing (CORS) misconfiguration found in UniFi OS to trigger actions in UniFi OS using that user's session.
INFO
Published Date :
July 2, 2026, 2:49 p.m.
Last Modified :
July 2, 2026, 2:49 p.m.
Remotely Exploit :
No
Source :
hackerone
Affected Products
The following products are affected by CVE-2026-55110
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Review and restrict UniFi OS CORS policy.
- Disable unnecessary cross-origin resource sharing.
- Implement strict origin validation.
- Update UniFi OS to the latest version.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-55110 vulnerability anywhere in the article.