CVE-2026-34836

Received Received - Intake

Improper Access Control in Combodo iTop Prior to 3.2.3

Publication date: 2026-08-21

Last updated on: 2026-08-21

Assigner: GitHub, Inc.

Description

Combodo iTop is a web based IT service management tool. Prior to 3.2.3, improper access control in ajax.render.php and ajax.document.php allows for document access without checking on user permissions. This issue has been fixed in version 3.2.3.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-21

Last Modified

2026-08-21

Generated

2026-08-22

AI Q&A

2026-08-22

EPSS Evaluated

N/A

NVD

CVE-2026-34836

Affected Vendors & Products

Vendor	Product	Version / Range
combodo	itop	to 3.2.3 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-862	The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

Executive Summary

This vulnerability in Combodo iTop versions prior to 3.2.3 involves improper access control in ajax.render.php and ajax.document.php. It allows unauthorized users to access documents without proper permission checks.

Detection Guidance

Check if your iTop instance is running a version prior to 3.2.3. Inspect network traffic for unauthorized access attempts to ajax.render.php or ajax.document.php endpoints. Review server logs for suspicious document access patterns without proper user permissions.

Impact Analysis

An attacker could exploit this to access sensitive documents without authorization. This may lead to data leaks, unauthorized information disclosure, or potential misuse of confidential data.

Compliance Impact

This vulnerability could violate compliance requirements such as GDPR or HIPAA by allowing unauthorized access to personal or sensitive data. Organizations may face legal penalties or reputational damage if exploited.

Mitigation Strategies

Upgrade iTop to version 3.2.3 or later immediately. Ensure proper access controls are enforced for document endpoints. Review and restrict user permissions to prevent unauthorized access.

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