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    • Type: Defect (Security)
    • Resolution: Fixed
    • Priority: Minor
    • None
    • Affects Version/s: None
    • Component/s: API (A), Frontend (F)
    • None

      CVE ID CVE-2026-1199
      CVSS score 6.9 (Medium)
      CVSS vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
      Affected components Frontend, API
      Summary API and Frontend login lockout race condition
      Description Zabbix API and Frontend login lockout mechanism has a flaw where several unsuccessful login requests are not properly counted towards the block counter if sent simultaneously, potentially allowing for more password guesses than intended.
      Known attack vectors An attacker with access to Zabbix Frontend or Zabbix API can perform more password guesses than intended.
      Affected and fix version/s Affected: 6.0.0 - 6.0.46 → Fixed: 6.0.47
      Affected: 7.0.0 - 7.0.27 → Fixed: 7.0.28
      Affected: 7.4.0 - 7.4.11 → Fixed: 7.4.12
      Mitigation Update the affected components to their respective fixed versions.
      Workarounds -
      Acknowledgements Zabbix wants to thank Vitaly Simonovich for submitting this report on the HackerOne bug bounty platform.

            Assignee:
            Zabbix Support Team
            Reporter:
            Janis Nulle
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              Created:
              Updated:
              Resolved: