CyberSecBulletin
CVE-2026-126176NVD status: Awaiting Analysis

FortiManager: XML Injection

Published Updated By the CyberSecBulletin desk

CVE-2026-126176 is a high-severity XML injection vulnerability in FortiManager from Fortinet, with a CVSS 3.1 base score of 8.1 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected FortiManager versions: 8.0.0; 7.6.0 through 7.6.7; 7.4.0 through 7.4.11, and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.29% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Check which version of FortiManager you run against the affected versions below, and install the vendor's latest release.
  2. Read the advisory on fortiguard.fortinet.com for workarounds and exact fixed builds.
  3. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
FortinetFortiManager8.0.0; 7.6.0 through 7.6.7; 7.4.0 through 7.4.11; 7.2.0 through 7.2.12Not stated
FortinetFortiAnalyzer8.0.0; 7.6.0 through 7.6.7; 7.4.0 through 7.4.11; 7.2.0 through 7.2.12Not stated
FortinetFortiAnalyzer Cloud8.0.0; 7.6.0 through 7.6.7; 7.4.1 through 7.4.11; 7.2.1 through 7.2.12Not stated
FortinetFortiManager Cloud8.0.0; 7.6.0 through 7.6.7; 7.4.1 through 7.4.11; 7.2.1 through 7.2.12Not stated

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
HighSuccess depends on conditions outside the attacker's control.
Privileges required
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
ChangedThe attack can reach beyond the vulnerable component into other systems.
Confidentiality
LowSome restricted data can be read.
Integrity
HighData or code can be modified at will.
Availability
LowPerformance or availability is reduced.

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:L. Scored by CNA (fortinet.com).

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.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: XML Injection

The product does not properly neutralize special elements that are used in XML, allowing attackers to modify the syntax, content, or commands of the XML before it is processed by an end system.

More XML Injection vulnerabilities (CWE-91)

Timeline

  1. CVE record published.
  2. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in FortiManager

All FortiManager vulnerabilities

Recent XML Injection vulnerabilities

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