PSIRTMFA Bypass in GUI
Summary
An authentication bypass using an alternate path or channel vulnerability [CWE-288] in FortiManager and FortiAnalyzer multifactor authentication may allow an attacker with knowledge of the admins password to bypass multifactor authentication checks via submitting multiple crafted requests.
| Version | Affected | Solution |
|---|---|---|
| FortiAnalyzer 7.6 | 7.6.0 through 7.6.3 | Upgrade to 7.6.4 or above |
| FortiAnalyzer 7.4 | 7.4.0 through 7.4.7 | Upgrade to 7.4.8 or above |
| FortiAnalyzer 7.2 | 7.2.2 through 7.2.11 | Migrate to a fixed release |
| FortiAnalyzer 6.4 | Not affected | Not Applicable |
| FortiAnalyzer Cloud 7.6 | 7.6.0 through 7.6.3 | Upgrade to 7.6.4 or above |
| FortiAnalyzer Cloud 7.4 | 7.4.0 through 7.4.7 | Upgrade to 7.4.8 or above |
| FortiAnalyzer Cloud 7.2 | 7.2.2 through 7.2.10 | Migrate to a fixed release |
| FortiManager 7.6 | 7.6.0 through 7.6.3 | Upgrade to 7.6.4 or above |
| FortiManager 7.4 | 7.4.0 through 7.4.7 | Upgrade to 7.4.8 or above |
| FortiManager 7.2 | 7.2.2 through 7.2.11 | Migrate to a fixed release |
| FortiManager 6.4 | Not affected | Not Applicable |
| FortiManager Cloud 7.6 | 7.6.0 through 7.6.3 | Upgrade to 7.6.4 or above |
| FortiManager Cloud 7.4 | 7.4.0 through 7.4.7 | Upgrade to 7.4.8 or above |
| FortiManager Cloud 7.2 | 7.2.2 through 7.2.10 | Migrate to a fixed release |
Acknowledgement
Discovered during an independent product security audit commissioned by Fortinet.Timeline
2026-03-10: Initial publication