CVE-2026-126156

CriticalCVSS 9.1/10Last modified Nov 12, 2026

Description

A authorization bypass through user-controlled key 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 all versions may allow an unauthenticated remote attacker to take over an arbitrary IBE recipient account via crafted HTTP requests.

Metrics

CVSS 3.1 9.1/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-639

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published
Nov 11, 2026
Last modified
Nov 12, 2026
NVD status
Awaiting Analysis

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CVE-2026-126156: Critical severity, CVSS 9.1 | Vulnix