FortiAuthenticator authz bypass (6.6.06.6.10, 8.0.08.0.3)
CVE-2026-126251 Published on November 11, 2026
A incorrect authorization vulnerability in Fortinet FortiAuthenticator 8.0.0 through 8.0.3, FortiAuthenticator 6.6.0 through 6.6.10 may allow an attacker to bypass authentication and gain unauthorized access.
Vulnerability Analysis
CVE-2026-126251 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, a high impact on integrity and availability.
Weakness Type
What is an AuthZ Vulnerability?
The software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
CVE-2026-126251 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-126251
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Affected Versions
Fortinet FortiAuthenticator:- Version 8.0.0, <= 8.0.3 is affected.
- Version 6.6.0, <= 6.6.10 is affected.