CVE-2026-126177 Other in FortiAnalyzer

High 8.1 Published Updated

Unauthenticated remote attackers can inject content into signed SAML responses via crafted requests to FortiAnalyzer and FortiManager; Fortinet customers should care.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Harmful if only installed
No
Needs a specific call
No
Fix
None listed

What is CVE-2026-126177?

CVE-2026-126177 is a high-severity other vulnerability in Fortinet FortiAnalyzer, published on 11 Nov 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A xml injection (aka blind xpath injection) vulnerability in Fortinet FortiAnalyzer 8.0.0, FortiAnalyzer 7.6.0 through 7.6.7, FortiAnalyzer 7.4.0 through 7.4.11, FortiAnalyzer 7.2.0 through 7.2.12, FortiAnalyzer Cloud 8.0.0, FortiAnalyzer Cloud 7.6.0 through 7.6.7, FortiAnalyzer Cloud 7.4.1 through 7.4.11, FortiAnalyzer Cloud 7.2.1 through 7.2.12, FortiManager 8.0.0, FortiManager 7.6.0 through 7.6.7, FortiManager 7.4.0 through 7.4.11, FortiManager 7.2.0 through 7.2.12, FortiManager Cloud 8.0.0, FortiManager Cloud 7.6.0 through 7.6.7, FortiManager Cloud 7.4.1 through 7.4.11, FortiManager Cloud 7.2.1 through 7.2.12 may allow an unauthenticated remote attacker to inject arbitary content into a signed SAML response via crafted SAML requests.

Weakness: CWE-91

Which versions are affected by CVE-2026-126177?

Only installations with a non-default setting turned on are exposed.

How do I fix CVE-2026-126177?

No fix has been published for CVE-2026-126177 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. More about Other.

Is CVE-2026-126177 being exploited?

There is no known exploitation of CVE-2026-126177 in the wild and no public exploit code.

Sources

Also known as GHSA-qq6m-8gxg-6mw4.

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