CVE-2026-104286

EUVD-2026-91042
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.
Path Traversal
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
fortinetCNA
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
fortinetfortimail
8.0.0
CNA
fortinetfortimail
7.6.0 ≤
𝑥
≤ 7.6.5
CNA
fortinetfortimail
7.4.0 ≤
𝑥
≤ 7.4.6
CNA
fortinetfortimail
7.2.0 ≤
𝑥
≤ 7.2.9
CNA
fortinetfortimail
7.0.0 ≤
𝑥
≤ 7.0.9
CNA
Common Weakness Enumeration
References
https://fortiguard.fortinet.com/psirt/FG-IR-26-175
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-104286