CVE-2026-126176: Fortinet FortiAnalyzer XML injection in SAML API

CVE-2026-126176 · Severity: high · CVSS 8.1 · Published 2026-11-11

FortiAnalyzer and FortiManager are management and analytics platforms for Fortinet security appliances. An unauthenticated attacker can inject malicious content into SAML authentication responses by crafting specific requests to the API, potentially compromising authentication security and gaining unauthorized access to the management interface.

Technologies: Fortinet Fortianalyzer, Fortinet Fortianalyzer Cloud, Fortinet FortiManager, Fortinet FortiManager Cloud. Vendors: Fortinet.

Quick answers

Is CVE-2026-126176 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-126176 being exploited in the wild.
How severe is CVE-2026-126176?
High severity, with a CVSS score of 8.1, published 11 November 2026.
Which products and versions are affected?
Fortinet Fortianalyzer 8.0.0, 7.6.0 through 7.6.7, 7.4.0 through 7.4.11, 7.2.0 through 7.2.12; Fortinet Fortianalyzer Cloud 8.0.0, 7.6.0 through 7.6.7, 7.4.1 through 7.4.11, 7.2.1 through 7.2.12; Fortinet FortiManager 8.0.0, 7.6.0 through 7.6.7, 7.4.0 through 7.4.11, 7.2.0 through 7.2.12; Fortinet FortiManager Cloud 8.0.0, 7.6.0 through 7.6.7, 7.4.1 through 7.4.11, 7.2.1 through 7.2.12.
Is there a fix for CVE-2026-126176?
Yes: fixed in FortiAnalyzer 8.0.1 or above, 7.6.8 or above, 7.4.12 or above, 7.2.13 or above; FortiAnalyzer Cloud 8.0.1 or above, 7.6.8 or above, 7.4.12 or above, 7.2.13 or above; FortiManager 8.0.1 or above, 7.6.8 or above, 7.4.12 or above, 7.2.13 or above; FortiManager Cloud 8.0.1 or above, 7.6.8 or above, 7.4.12 or above, 7.2.13 or above. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-126176 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-126176?
Check whether you run Fortinet Fortianalyzer, Fortinet Fortianalyzer Cloud, Fortinet FortiManager or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: FortiAnalyzer 8.0.1 or above, 7.6.8 or above, 7.4.12 or above, 7.2.13 or above; FortiAnalyzer Cloud 8.0.1 or above, 7.6.8 or above, 7.4.12 or above, 7.2.13 or above; FortiManager 8.0.1 or above, 7.6.8 or above, 7.4.12 or above, 7.2.13 or above; FortiManager Cloud 8.0.1 or above, 7.6.8 or above, 7.4.12 or above, 7.2.13 or above

Technical details

An XML injection vulnerability (CWE-91, also known as blind XPath injection) exists in the SAML authentication API endpoint. An unauthenticated remote attacker can send crafted SAML requests to inject arbitrary content into signed SAML responses, bypassing SAML integrity verification. This allows authentication bypass and account takeover of administrative accounts.

Affected products

  • Fortinet FortiAnalyzer 8.0.0, 7.6.0 through 7.6.7, 7.4.0 through 7.4.11, 7.2.0 through 7.2.12
  • Fortinet FortiAnalyzer Cloud 8.0.0, 7.6.0 through 7.6.7, 7.4.1 through 7.4.11, 7.2.1 through 7.2.12
  • Fortinet FortiManager 8.0.0, 7.6.0 through 7.6.7, 7.4.0 through 7.4.11, 7.2.0 through 7.2.12
  • Fortinet FortiManager Cloud 8.0.0, 7.6.0 through 7.6.7, 7.4.1 through 7.4.11, 7.2.1 through 7.2.12

Timeline

  • 2026-11-10: disclosed
  • 2026-11-10: advisory

References

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