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
Published Oct 1, 2026 ·Due Oct 4, 2026
9.8
CRITICALCVSS 3.1
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.
Affected products
-
- Version 7.0.0StatusaffectedConstraints<=7.0.9
- Version 7.2.0StatusaffectedConstraints<=7.2.9
- Version 7.4.0StatusaffectedConstraints<=7.4.6
- Version 7.6.0StatusaffectedConstraints<=7.6.5
- Version 8.0.0StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Vendor solution
Upgrade to upcoming FortiMail version 8.0.1 or above Upgrade to upcoming FortiMail version 7.6.6 or above Upgrade to upcoming FortiMail version 7.4.8 or above Upgrade to upcoming FortiMail version 7.2.10 or above Upgrade to FortiRecorder version 7.6.1 or above Upgrade to FortiRecorder version 7.2.12 or above Upgrade to upcoming FortiRecorder version 7.0.7 or above
Metrics
No CVSS v4.0 score for this CVE.
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
1 other source (NVD) ▾
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
Date Added
Oct 1, 2026
Patch Due
Oct 4, 2026
Required Action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
ActiveAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed Oct 1, 2026 · SSVC 2.0.3
No EPSS score for this CVE.
References (2)
- https://fortiguard.fortinet.com/psirt/FG-IR-26-175
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-104286 government-resource
| Link | Providers | Tags |
|---|---|---|
| https://fortiguard.fortinet.com/psirt/FG-IR-26-175 | ||
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-104286 | government-resource |
Change history (1)
- CISA ADP
- SSVC exploitation changed from none to
active none → active
- SSVC exploitation changed from none to
active