A url redirection to untrusted site ('open redirect') vulnerability in Fortinet FortiAuthenticator 8.0.0 through 8.0.3, FortiAuthenticator 6.6.0 through 6.6.10 may allow an unauthenticated attacker to perform an open redirect attack via crafted HTTP requests.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Fortinet
  • Fortiauthenticator

No data.

No data.

References
Link Providers
https://fortiguard.fortinet.com/psirt/FG-IR-26-191 cve-icon cve-icon
History

Thu, 12 Nov 2026 13:00:00 +0000

Type Values Removed Values Added
Title Open Redirect Vulnerability in FortiAuthenticator

Wed, 11 Nov 2026 21:45:00 +0000

Type Values Removed Values Added
Description A url redirection to untrusted site ('open redirect') vulnerability in Fortinet FortiAuthenticator 8.0.0 through 8.0.3, FortiAuthenticator 6.6.0 through 6.6.10 may allow an unauthenticated attacker to perform an open redirect attack via crafted HTTP requests.
First Time appeared Fortinet
Fortinet fortiauthenticator
Weaknesses CWE-601
CPEs cpe:2.3:a:fortinet:fortiauthenticator:6.5.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.5.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.5.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.5.3:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.5.4:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.5.5:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.5.6:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.5.7:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.6.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.6.10:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.6.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.6.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.6.3:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.6.4:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.6.5:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.6.6:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.6.7:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.6.8:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:6.6.9:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:8.0.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:8.0.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:8.0.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:8.0.3:*:*:*:*:*:*:*
Vendors & Products Fortinet
Fortinet fortiauthenticator
References
Metrics cvssV3_1

{'score': 5.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C'}
cve-icon MITRE

Status: PUBLISHED

Assigner: fortinet

Published: 2026-11-11T21:31:49.831Z

Updated: 2026-11-11T21:31:49.831Z

Reserved: 2026-11-03T14:32:06.815Z

Link: CVE-2026-121526

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-11T22:17:10.970

Modified: 2026-11-11T22:17:10.970

Link: CVE-2026-121526

cve-icon Redhat

No data.