Skip to main content
CVE-2026-121526VulnerabilityPublished

Fortinet FortiAuthenticator · Open Redirect

Source GCVE Database

0
Compare
Authoritative record:CVE-2026-121526· Medium 5.8

Public exploit available · CVSS 5.8 Medium · patch available : patch FortiAuthenticator as a priority.

Data as of 12 Nov 2026, 01:33 UTC

CVSS 3.1 base score
5.8Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (fortinet)CVSS 3.15.8
Patch
Available
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

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    CVSS exploit maturity: proof of concept public

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
FortinetFortiAuthenticatorAffected
  • >=8.0.0 <=8.0.3
  • >=6.6.0 <=6.6.10
  • >=6.5.0 <=6.5.7
Fixed in–

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.

References

Community reviews

Loading reviews…