CVE-2026-55110

Published Jul 2, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Cross‑Origin Resource Sharing Misconfiguration in UniFi OS Allows Unauthorized API Calls
Type Values Removed Values Added
Title Cross‑Origin Resource Sharing Misconfiguration in UniFi OS Allows Unauthorized API Calls
Type Values Removed Values Added
Title Cross‑Origin Resource Sharing Misconfiguration Exposes Authenticated Sessions in UniFi OS
Type Values Removed Values Added
Title Cross‑Origin Resource Sharing Misconfiguration Exposes Authenticated Sessions in UniFi OS
Type Values Removed Values Added
Title CORS Misconfiguration in UniFi OS Enables Unauthorized Actions via Authenticated Sessions
Type Values Removed Values Added
Title CORS Misconfiguration in UniFi OS Enables Unauthorized Actions via Authenticated Sessions
Type Values Removed Values Added
Title CORS Misconfiguration in UniFi OS Enables Unauthorized Actions
Type Values Removed Values Added
Title CORS Misconfiguration in UniFi OS Enables Unauthorized Actions
Type Values Removed Values Added
Title CORS misconfiguration in UniFi OS permits attackers to execute privileged actions using a victim's session
Type Values Removed Values Added
Title CORS misconfiguration in UniFi OS permits attackers to execute privileged actions using a victim's session
Type Values Removed Values Added
Title CORS Misconfiguration in UniFi OS Enables Unauthorized API Calls
Type Values Removed Values Added
Title CORS Misconfiguration in UniFi OS Enables Unauthorized API Calls
Type Values Removed Values Added
Title CORS Misconfiguration Enables Unauthorized Actions in UniFi OS
Type Values Removed Values Added
Title CORS Misconfiguration Enables Unauthorized Actions in UniFi OS
Type Values Removed Values Added
Title CORS Misconfiguration in UniFi OS Enabling Unauthorized Actions via Authenticated User Session
Type Values Removed Values Added
Title CORS Misconfiguration in UniFi OS Enabling Unauthorized Actions via Authenticated User Session
Type Values Removed Values Added
Title CORS Misconfiguration Exploitable by Authenticated Users in UniFi OS
Type Values Removed Values Added
Title CORS Misconfiguration Exploitable by Authenticated Users in UniFi OS
Type Values Removed Values Added
Title UniFi OS CORS Misconfiguration Allows Unauthorized Actions in Authenticated Sessions
Type Values Removed Values Added
Title UniFi OS CORS Misconfiguration Allows Unauthorized Actions in Authenticated Sessions
Type Values Removed Values Added
Title CORS Misconfiguration in UniFi OS Enabling Unauthorized Actions
Type Values Removed Values Added
Title CORS Misconfiguration in UniFi OS Enabling Unauthorized Actions
Type Values Removed Values Added
Title CORS Misconfiguration Enables Authenticated Session Abuse in UniFi OS
Type Values Removed Values Added
Title CORS Misconfiguration Enables Authenticated Session Abuse in UniFi OS
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Weaknesses CWE-942
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'}

Subscriptions

Ui Enterprise Firewall Core Enterprise Firewall Core Firmware Enterprise Fortress Gateway Enterprise Fortress Gateway Firmware Enterprise Network Video Recorder Enterprise Network Video Recorder Core Enterprise Network Video Recorder Core Firmware Enterprise Network Video Recorder Firmware Unas 2 Unas 2 Firmware Unas 4 Unas 4 Firmware Unas Pro Unas Pro 4 Unas Pro 4 Firmware Unas Pro 8 Unas Pro 8 Firmware Unas Pro Firmware Unifi Cloud Gateway Fiber Unifi Cloud Gateway Fiber Firmware Unifi Cloud Gateway Industrial Unifi Cloud Gateway Industrial Firmware Unifi Cloud Gateway Max Unifi Cloud Gateway Max Firmware Unifi Cloud Gateway Ultra Unifi Cloud Gateway Ultra Firmware Unifi Cloud Key Plus Unifi Cloud Key Plus Firmware Unifi Cloudkey Unifi Cloudkey Enterprise Unifi Cloudkey Enterprise Firmware Unifi Cloudkey Firmware Unifi Dream Machine Beast Unifi Dream Machine Beast Firmware Unifi Dream Machine Pro Unifi Dream Machine Pro Firmware Unifi Dream Machine Pro Max Unifi Dream Machine Pro Max Firmware Unifi Dream Machine Special Edition Unifi Dream Machine Special Edition Firmware Unifi Dream Router Unifi Dream Router 7 Unifi Dream Router 7 Firmware Unifi Dream Router Firmware Unifi Dream Wall Unifi Dream Wall Firmware Unifi Express 7 Unifi Express 7 Firmware Unifi Network Video Recorder Unifi Network Video Recorder Firmware Unifi Network Video Recorder G2 Unifi Network Video Recorder G2 Firmware Unifi Network Video Recorder G2 Pro Unifi Network Video Recorder G2 Pro Firmware Unifi Network Video Recorder Instant Unifi Network Video Recorder Instant Firmware Unifi Network Video Recorder Pro Unifi Network Video Recorder Pro Firmware Unifi Os Server
Weaknesses

Sources

Status
PUBLISHED
Assigner
hackerone
Published
Updated
Jul 2, 2026, 3:52 PM
Reserved
Jun 16, 2026, 3:00 PM
Status
Undergoing Analysis
Published
Jul 2, 2026, 3:17 PM
Modified
Jul 9, 2026, 6:33 PM