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Fortinet PSIRT AdvisoriesFG-IR-26-204

Authorization bypass through user-controlled key

HighVendor CVSS 8.1 / 10 1 CVE Published Nov 10, 2026 at 8:00 AM UTC

Summary

CVSSv3 Score:

8.1

An Authorization Bypass Through User-Controlled Key vulnerability [CWE-639] in FortiMail may allow an authenticated remote attacker to delete arbitrary directories as root, or to access or delete other users' calendar and mailbox data across tenant domains, via crafted HTTP requests to the webmail and administrative interfaces.

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

Products covered

  • FortiMail

Remediation

Separate remediation guidance was not included in the collected bulletin.

CVEs in this advisory 1

Updates

  1. Published by Fortinet

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.