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Fortinet PSIRT AdvisoriesFG-IR-26-218

Improper neutralization of special elements used in a command

HighVendor CVSS 7.6 / 10 4 CVEs Published Nov 10, 2026 at 8:00 AM UTC

Summary

CVSSv3 Score:

7.6

An Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') [CWE-88] in FortiMail may allow an authenticated remote attacker with domain admin or admin privileges to delete users of other tenant domains on a paired FortiAuthenticator, execute arbitrary code as root or arbitrary CLI commands, and read or write arbitrary files as root via crafted HTTP requests to the administrative interface.

Revised on 2026-11-10 00:00:00

Products covered

  • FortiMail

  • FortiAuthenticator

Remediation

Separate remediation guidance was not included in the collected bulletin.

CVEs in this advisory 4

Updates

  1. Published by Fortinet

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.