Fortinet FortiManager Authorization Bypass (CVE-2026-126183)
An authorization bypass vulnerability in FortiManager and FortiManager Cloud allows an authenticated attacker to execute commands outside of their expected scope via a specially crafted HTTP request.
CVE search metadata
CVE search record: CVE-2026-126183. Severity: high. CVSS: 8.7. KEV: no. Product: FortiManager, FortiManager Cloud. Brief: Fortinet FortiManager Authorization Bypass (CVE-2026-126183). Brief link: https://feed.craftedsignal.io/briefs/2026-11-fortinet-fortimanager-auth-bypass-cve-2026-126183/
Triage facts
Revision 1- Applicability
- FortiManager, FortiManager Cloud
- Evidence
- Unknown
- Severity
- High
- Sources
- 1 public source
- Freshness
- Revision 1Nov 12, 02:10 UTC
- Vulnerabilities
- 1 CVE
- Source quality
- A2Roughly even chance
CVE-2026-126183 is an authorization bypass vulnerability through user-controlled keys in FortiManager and FortiManager Cloud. An authenticated attacker can exploit this to execute commands outside of the expected scope via a specially crafted HTTP request.
Impact
This vulnerability carries a CVSS v3.1 base score of 8.7.
Recommendation
Users should refer to official Fortinet security advisories to determine if their instance is affected and to apply necessary updates.