FortiOS

CVE-2026-59839: Path traversal in FortiProxy, FortiOS and others

A improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Fortinet FortiOS 7.6.0 through 7.6.6, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions, FortiPAM 1.8.0, FortiPAM 1.7.0 through 1.7.2, FortiPAM 1.6 all versions, FortiPAM 1.5 all versions, FortiPAM 1.4 all versions, FortiPAM 1.3 all versions, FortiPAM 1.2 all versions, FortiPAM 1.1 all versions, FortiPAM 1.0 all versions, FortiProxy 7.6.0 through 7.6.5, FortiProxy 7.4 through 7.4.13, FortiProxy 7.2 all versions, FortiProxy 7.0 all versions may allow attacker to execute unauthorized code or commands via <insert attack vector here>

Published

ExploitedNot in CISA KEV
Ransomware useNot reportedPer CISA
SeverityMEDIUMCVSS 3.1 5
EPSS0.25%Chance of exploitation in 30 days
Public exploitNot tracked
FixAvailable

Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.

Affected and fixed versions

Product / branchFixed in
FortiProxy 7.6.0 to 7.6.57.6.6 or later
FortiProxy 7.4.0 to 7.4.13Upgrade past 7.4.13; see the advisory
FortiProxy 7.2.0 to 7.2.16Upgrade past 7.2.16; see the advisory
FortiProxy 7.0.0 to 7.0.23Upgrade past 7.0.23; see the advisory
FortiOS 7.6.0 to 7.6.67.6.7 or later
FortiOS 7.4.0 to 7.4.97.4.10 or later
FortiOS 7.2.0 to 7.2.13Upgrade past 7.2.13; see the advisory
FortiOS 7.0.0 to 7.0.19Upgrade past 7.0.19; see the advisory
FortiOS 6.4.0 to 6.4.16Upgrade past 6.4.16; see the advisory
FortiPAM 1.81.8.1 or later
FortiPAM 1.7.0 to 1.7.2Upgrade past 1.7.2; see the advisory
FortiPAM 1.6.0 to 1.6.2Upgrade past 1.6.2; see the advisory
FortiPAM 1.5.0 to 1.5.1Upgrade past 1.5.1; see the advisory
FortiPAM 1.4.0 to 1.4.3Upgrade past 1.4.3; see the advisory
FortiPAM 1.3.0 to 1.3.1Upgrade past 1.3.1; see the advisory
FortiPAM 1.2See the advisory
FortiPAM 1.1.0 to 1.1.2Upgrade past 1.1.2; see the advisory
FortiPAM 1.0.0 to 1.0.3Upgrade past 1.0.3; see the advisory

Always confirm against the vendor advisory, which lists every fixed hotfix.

What it is

A improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Fortinet FortiOS 7.6.0 through 7.6.6, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.4 all versions, FortiPAM 1.8.0, FortiPAM 1.7.0 through 1.7.2, FortiPAM 1.6 all versions, FortiPAM 1.5 all versions, FortiPAM 1.4 all versions, FortiPAM 1.3 all versions, FortiPAM 1.2 all versions, FortiPAM 1.1 all versions, FortiPAM 1.0 all versions, FortiProxy 7.6.0 through 7.6.5, FortiProxy 7.4 through 7.4.13, FortiProxy 7.2 all versions, FortiProxy 7.0 all versions may allow attacker to execute unauthorized code or commands via <insert attack vector here>

Sources

KEV status, EPSS score and vendor data refreshed automatically, last on 10 Oct 2026.

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