FG-IR-26-090: MFA Bypass in GUI

Published Mar 10, 2026
·
Updated

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.

Affected Software

6 affected componentsFixes available
Fortinet FortiAnalyzer>=7.6.0<=7.6.3
Fortinet FortiAnalyzer>=7.4.0<=7.4.7
Fortinet FortiAnalyzer>=7.2.2<=7.2.11
Fortinet FortiManager>=7.6.0<=7.6.3
Fortinet FortiManager>=7.4.0<=7.4.7
Fortinet FortiManager>=7.2.2<=7.2.11

Event History

Mar 10, 2026
Advisory Published
via FortiGuard·12:00 AM
Data Sourced
via FortiGuard·12:00 AM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of FG-IR-26-090?

The severity of FG-IR-26-090 is critical due to the potential for unauthorized access via multifactor authentication bypass.

2

How do I fix FG-IR-26-090?

To fix FG-IR-26-090, upgrade FortiAnalyzer and FortiManager to version 7.6.4 or 7.4.8 as appropriate based on your current version.

3

Which versions are affected by FG-IR-26-090?

FG-IR-26-090 affects FortiAnalyzer and FortiManager versions 7.6.0 through 7.6.3 and 7.4.0 through 7.4.7, among others.

4

What products are vulnerable to FG-IR-26-090?

FG-IR-26-090 impacts Fortinet products including FortiAnalyzer, FortiManager, and their cloud counterparts.

5

Can FG-IR-26-090 be exploited remotely?

Yes, FG-IR-26-090 can potentially be exploited remotely if an attacker possesses the administrator's password.

Contact

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