An improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1, FortiMail 7.6.0 through 7.6.6, FortiMail 7.4.0 through 7.4.8, FortiMail 7.2.0 through 7.2.9 may allow an unauthenticated attacker to write arbitrary files on the underlying system via crafted HTTP or HTTPS requests.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is in the KEV database since Oct. 1, 2026.

Exploitation active

Automatable yes

Technical Impact total

Affected Vendors & Products

Vendors Products
Fortinet
  • Fortimail

Configuration 1 [-]

OR cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:*

No data.

References
Link Providers
https://fortiguard.fortinet.com/psirt/FG-IR-26-175 cve-icon cve-icon
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-104286 cve-icon cve-icon
History

Fri, 02 Oct 2026 16:15:00 +0000

Type Values Removed Values Added
Title Improper Pathname Restriction Allows Unauthenticated Arbitrary File Write in Fortinet FortiMail

Fri, 02 Oct 2026 12:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:*

Thu, 01 Oct 2026 21:45:00 +0000

Type Values Removed Values Added
Title Improper Pathname Restriction Allows Unauthenticated Arbitrary File Write in Fortinet FortiMail

Thu, 01 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

 ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Thu, 01 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Thu, 01 Oct 2026 20:00:00 +0000

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2026-10-01T00:00:00+00:00', 'dueDate': '2026-10-04T00:00:00+00:00'}

Thu, 01 Oct 2026 19:45:00 +0000

Type Values Removed Values Added
Description An improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1, FortiMail 7.6.0 through 7.6.6, FortiMail 7.4.0 through 7.4.8, FortiMail 7.2.0 through 7.2.9 may allow an unauthenticated attacker to write arbitrary files on the underlying system via crafted HTTP or HTTPS requests.
First Time appeared Fortinet
Fortinet fortimail
Weaknesses CWE-22
CPEs cpe:2.3:a:fortinet:fortimail:7.0.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.0.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.0.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.0.3:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.0.4:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.0.5:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.0.6:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.0.7:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.0.8:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.0.9:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.2.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.2.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.2.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.2.3:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.2.4:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.2.5:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.2.6:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.2.7:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.2.8:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.2.9:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.4.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.4.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.4.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.4.3:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.4.4:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.4.5:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.4.6:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.6.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.6.1:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.6.2:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.6.3:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.6.4:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:7.6.5:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:8.0.0:*:*:*:*:*:*:*
Vendors & Products Fortinet
Fortinet fortimail
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C'}
cve-icon MITRE

Status: PUBLISHED

Assigner: fortinet

Published: 2026-10-01T19:17:38.938Z

Updated: 2026-10-07T17:59:34.842Z

Reserved: 2026-10-01T19:12:54.081Z

Link: CVE-2026-104286

cve-icon Vulnrichment

Updated: 2026-10-01T19:38:33.218Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-01T20:17:24.010

Modified: 2026-10-07T18:17:15.240

Link: CVE-2026-104286

cve-icon Redhat

No data.