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Path traversal in Ubiquiti UniFi Protect AI Key lets attackers write files

Priority LOW 17CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

A path traversal flaw (CWE-22) in Ubiquiti UniFi Protect AI Key versions from 0 before 2.2.8 lets a malicious actor with network access create or truncate files on the device. Exploitation requires certain conditions. The CVSS 3.1 base score is 3.7 (low).

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

A malicious actor with access to the network and under certain conditions could exploit a Path Traversal vulnerability found in UniFi Protect AI Key to create or truncate files on the device.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00261 17th percentileScored 2026-11-07
Fix Fixed UniFi Protect AI Key (Ubiquiti Inc): 2.2.8

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UbiquitiUniFi Protect AI Keybefore 2.2.82.2.8Patch availableCNA
  • UniFi Protect AI Key VendorUbiquiti Affected before 2.2.8 Fixed in 2.2.8 Patch available CNA

Remediation

Update UniFi Protect AI Key to version 2.2.8.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA UniFi Protect AI Key (Ubiquiti Inc) Fixed in 2.2.8

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Ubiquiti UniFi Protect AI Key 2.2.8

    6 records Highest priority Priority MEDIUM 2 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2026-73879 Improper access control in Ubiquiti UniFi Protect AI KeyPriority MEDIUM 43
    • TI-2026-73875 Command injection in Ubiquiti UniFi Protect AI Key via improper input validationPriority MEDIUM 40
    • TI-2026-73876 UniFi Protect AI Key access control flaw exposes internal resourcesPriority LOW 30

Timeline

  1. 2026-10-14 Threatist record created from CVE-2026-110458
  2. 2026-10-14 Alias added: GHSA-3x44-5jjf-v9pv
  3. 2026-10-15 CISA SSVC decision points changed

References

  • TI-2026-27142 Improper input validation in Ubiquiti UniFi OS Server KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-27141 Path traversal in Ubiquiti UniFi OS Server KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-27140 Improper access control in Ubiquiti UniFi OS Server KEVCVSS 3.1CRITICAL 10.0
  • TI-2010-05027 On certain Ubiquiti devices, Command Injection exists via a GET request to stainfo.cgi… KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-19187 AirControl 1.4.2 - PreAuth Remote Code Execution CVSS 4.0CRITICAL 9.3
  • TI-2015-07644 Ubiquiti airOS HTTP(S) unauthenticated arbitrary file upload CVSS 3.0CRITICAL 9.8
See all 206 →

Sources