CVE-2026-55115 in UniFi Protect Application
A malicious actor with access to the network and low privileges could exploit a Server-Side Request Forgery (SSRF) in UniFi Protect Application to escalate privileges on the host device.
Quick answer
Ubiquiti UniFi Protect Application should be reviewed and updated if it matches the affected versions. The recommended fix is to apply the vendor-supported patched version or the mitigation steps below, then retest the public website with Fixnx.
Who is affected
Affected versions
- UniFi Protect Application before 7.1.83
Fixed versions
- UniFi Protect Application 7.1.83 or later
How to fix it
CVE-2026-55115 affects UniFi Protect Application. The issue means an SSRF issue may let a low-privilege user escalate privileges on the host device. Treat this as a priority if the system is reachable by users, tenants, or the network. Update to UniFi Protect Application 7.1.83 or later, or follow the vendor advisory if your branch needs a backport.
- Inventory every UniFi Protect Application instance, appliance, container, or package in use.
- Compare installed versions with the affected ranges in the vendor advisory.
- Update to UniFi Protect Application 7.1.83 or later on supported systems.
- If you cannot update today, restrict access to trusted admins and trusted networks only.
- Review logs for unusual access, privilege changes, file access, or failed requests.
- Rotate secrets, tokens, and service accounts if exposure or abuse is suspected.
- Document the change and keep the advisory link with the ticket.
Scan now. Google sign-in is only needed to unlock fix guidance.
Verify the fix
- Confirm the installed version is UniFi Protect Application 7.1.83 or later.
- Confirm exposed admin, API, SFTP, or device access is limited to trusted users.
- Retest the affected workflow after the update or mitigation.
- Review logs again after patching for repeated suspicious activity.
- Run a new Fixnx scan where the affected service is part of the public site.
Related categories
Trusted references
FAQ
What is affected by CVE-2026-55115?
Ubiquiti UniFi Protect Application versions listed as affected should be reviewed: UniFi Protect Application before 7.1.83.
What should I fix first?
Start with internet-facing sites, admin panels, login flows, plugins, themes, modules, packages, and systems that process user-controlled input or sensitive data.
How do I confirm the fix worked?
Apply the patched version or mitigation, clear caches where relevant, retest the affected workflow, and run a new Fixnx scan to verify public website exposure signals.
How are Fixnx security risk categories chosen?
Fixnx keeps one canonical risk page and assigns only broad, relevant categories such as ecosystem, technology area, or vulnerability class.