CVE-2026-22572
Published: 10 March 2026
Summary
CVE-2026-22572 is a high-severity Authentication Bypass Using an Alternate Path or Channel (CWE-288) vulnerability in Fortinet Fortianalyzer. Its CVSS base score is 7.2 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 32.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 AC-3 (Access Enforcement) and IA-2 (Identification and Authentication (Organizational Users)).
Deeper analysis
CVE-2026-22572 is an authentication bypass vulnerability using an alternate path or channel, classified under CWE-288. It affects Fortinet FortiAnalyzer versions 7.6.0 through 7.6.3, 7.4.0 through 7.4.7, and 7.2.2 through 7.2.11, as well as FortiManager in the same version ranges. The issue enables an attacker with knowledge of an admin's password to bypass multifactor authentication checks by submitting multiple crafted requests, as disclosed on March 10, 2026.
The vulnerability has a CVSS v3.1 base score of 7.2 (AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H), indicating network-accessible exploitation with low complexity but requiring high privileges. An attacker who already knows the admin password can leverage crafted requests to evade MFA, achieving high confidentiality, integrity, and availability impacts, such as unauthorized administrative access to the FortiAnalyzer or FortiManager instances.
Fortinet's PSIRT advisory FG-IR-26-090 at https://fortiguard.fortinet.com/psirt/FG-IR-26-090 provides further details on the vulnerability, including mitigation steps and available patches.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-10511
Vulnerability details
An authentication bypass using an alternate path or channel vulnerability in Fortinet FortiAnalyzer 7.6.0 through 7.6.3, FortiAnalyzer 7.4.0 through 7.4.7, FortiAnalyzer 7.2.2 through 7.2.11, FortiManager 7.6.0 through 7.6.3, FortiManager 7.4.0 through 7.4.7, FortiManager 7.2.2 through 7.2.11 may allow an attacker…
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with knowledge of the admins password to bypass multifactor authentication checks via submitting multiple crafted requests.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
CVE enables remote auth bypass on public-facing Fortinet appliances via alternate path, directly facilitating T1190 exploitation and T1556.006 MFA evasion with known credentials.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires multi-factor authentication for organizational users and therefore blocks the MFA bypass path described in CVE-2026-22572.
Enforces access decisions only after successful completion of all required authentication factors, stopping the alternate-path bypass that lets an attacker with a password evade MFA.
Adaptive authentication can detect and reject the anomalous sequence of crafted requests used to bypass MFA checks in this vulnerability.