CVE-2026-39975 PUBLISHED

Combodo iTop: Remote code execution using external auth variable value

Assigner: GitHub_M
Reserved: 08.04.2026 Published: 24.08.2026 Updated: 24.08.2026

Combodo iTop is a web-based IT service management tool. Prior to 3.2.3, unauthenticated users could delete the .readonly file on iTop instances, leading to code execution. This file, created during the setup process, prevents users from performing write actions. This issue has been fixed in version 3.2.3.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CVSS Score: 9.4

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	High
User Interaction	None

CVSS 4.0

Product Status

Vendor	Combodo
Product	iTop
Versions	Version < 3.2.3 is affected

References

https://github.com/Combodo/iTop/security/advisories/GHSA-h823-537c-xwfh

Problem Types

CWE-94: Improper Control of Generation of Code ('Code Injection') CWE