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Fortinet EUVDEUVD-2026-22321

| CVE-2026-22573 MEDIUM
Path Traversal (CWE-22)
2026-04-14 fortinet
Path Traversal Fortinet
6.5
CVSS 3.1 · NVD
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Obtain valid FortiSOAR credentials
  2. Delivery
    Access workflow creation interface
  3. Exploit
    Inject path traversal payload in File Content Extraction action
  4. Execution
    Bypass pathname validation
  5. Persist
    Read arbitrary file
  6. Impact
    Exfiltrate sensitive data

Vulnerability Assessment

Weakness
CWE
CWE-22
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling Path canonicalization, traversal prevention
MITRE ATT&CK

2 techniques across 2 tactics: Discovery, Collection

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

CVSS 6.5 (Medium-High) with CVSS vector AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N reflects a network-accessible vulnerability requiring low privileges (L) and no user interaction. Real-world risk is elevated because: (1) FortiSOAR is deployed by security operations centers (SOCs) handling incident response and threat intelligence, meaning accessible files are highly sensitive; (2) authenticated access is a low barrier in insider-threat or credential-compromise scenarios; (3) confidentiality impact is high (file read), though integrity and availability are unaffected. The path traversal is automatable and does not require complex exploitation, suggesting moderate-to-high exploitation probability despite lack of public POC references. Organizations with FortiSOAR should prioritize patching, especially PaaS instances where multi-tenant isolation is critical.
Exploit ScenarioDerived

An authenticated SOC analyst with credentials to FortiSOAR crafts a workflow using the File Content Extraction action and supplies a path traversal payload (e.g., '../../../../etc/passwd' or '/etc/sensitive_config') instead of a legitimate log file path. The application fails to validate the input and returns the contents of the requested system file, allowing the attacker to exfiltrate configuration files, credentials, or other sensitive data stored on the FortiSOAR server or accessible via the underlying operating system.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Apr 14, 2026

Fortinet FortiSOAR (both PaaS and on-premise versions 7.3-7.6.3) contains a path traversal vulnerability in File Content Extraction actions that allows authenticated remote attackers to read arbitrary files outside the intended directory with high confidentiality impact. The vulnerability requires valid credentials and is exploitable over the network with no user interaction; CVSS 6.5 reflects medium-to-high severity for a cloud security platform handling sensitive workflows.

RemediationAI

Upgrade FortiSOAR on-premise and PaaS deployments to versions 7.6.4 or later, 7.5.4 or later, and 7.4.6 or later as released by Fortinet. For organizations unable to patch immediately, restrict access to File Content Extraction actions through role-based access controls to only trusted administrators, and monitor audit logs for unusual file access patterns via the FortiSOAR workflow engine. Consult Fortinet Security Advisory FG-IR-26-116 at https://fortiguard.fortinet.com/psirt/FG-IR-26-116 for patch availability and detailed upgrade instructions specific to your deployment model.

Affected VersionsENISA

FortiSOAR on-premise 7.5.0 ≤7.5.3
FortiSOAR on-premise 7.6.0 ≤7.6.3
FortiSOAR on-premise 7.3.0 ≤7.3.3
FortiSOAR PaaS 7.6.0 ≤7.6.3
FortiSOAR PaaS 7.3.0 ≤7.3.3
FortiSOAR PaaS 7.5.0 ≤7.5.3
FortiSOAR on-premise 7.4.0 ≤7.4.5
FortiSOAR PaaS 7.4.0 ≤7.4.5

Affected Packages

euvd fortisoar_on_premise no fix
euvd fortisoar_paas no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 2 packages in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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Technical ContextAI · show details

FortiSOAR is a cloud-native security orchestration, automation, and response (SOAR) platform. The vulnerability resides in the File Content Extraction action workflow component, which fails to properly validate and restrict file path inputs, enabling directory traversal via path manipulation sequences (e.g., '../' or absolute path references). This is a classic CWE-22 pathname validation bypass allowing an authenticated user to escape the intended file storage directory and access system or application files. Both PaaS (multi-tenant cloud) and on-premise (self-hosted) deployments share the same vulnerable code path.

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Severity by source

NVD PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

2
CVSS changed
Apr 14, 2026 - 16:22 NVD
6.2 (MEDIUM) 6.5 (MEDIUM)
CVE Published
Apr 14, 2026 - 15:38 nvd
MEDIUM 6.5

DescriptionCVE.org

An improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Fortinet FortiSOAR PaaS 7.6.0 through 7.6.3, FortiSOAR PaaS 7.5 all versions, FortiSOAR PaaS 7.4 all versions, FortiSOAR PaaS 7.3 all versions, FortiSOAR on-premise 7.6.0 through 7.6.3, FortiSOAR on-premise 7.5 all versions, FortiSOAR on-premise 7.4 all versions, FortiSOAR on-premise 7.3 all versions may allow an authenticated remote attacker to perform path traversal attack via File Content Extraction actions.

Threat Intelligence Overview

EPSS Score
0.1%
Top 84% exploitable
Data Quality
5 sources
Confidence: Medium
EUVD NVD CVE.org EPSS Vulnrichment Fortinet

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

32
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Path Traversal HIGH

Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.

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References

Advisories & patches
ADVISORY https://fortiguard.fortinet.com/psirt/FG-IR-26-116 ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-22573 REF https://fortiguard.fortinet.com/psirt/FG-IR-26-116

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