TI-2026-28831 Aliases CVE-2026-39975

Combodo iTop: Remote code execution using external auth variable value

MEDIUM 43CWE-94Published 2026-08-24 · Updated 2026-08-24

Key facts

Attack vector: Network
Privileges required: High
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-94.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00591 48th percentileScored 2026-11-07

Fix Fixed iTop (Combodo): 3.2.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Combodo	iTop	before 3.2.3	3.2.3	Patch available	CNA

iTop VendorCombodo Affected before 3.2.3 Fixed in 3.2.3 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:combodo:itop::::::::	—	—	Combodo

cpe:2.3:a:combodo:itop:*:*:*:*:*:*:*:* Versions — — ·Combodo

Remediation

Fix · CNA iTop (Combodo) Fixed in 3.2.3

Timeline

2026-10-02 Threatist record created from CVE-2026-39975

References

Other 1

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

TI-2022-08681 Stored Cross-site Scripting in Combodo iTop CVSS 3.1HIGH 8.7
TI-2022-08593 Code Injection in Combodo iTop CVSS 3.1HIGH 8.8
TI-2021-18080 Possible Cross-Site Request Forgery in Combodo iTop CVSS 3.1HIGH 8.1
TI-2026-21869 Combodo iTop: User enumeration via password reset CVSS 3.1HIGH 7.5
TI-2023-25672 Cross Site Scripting vulnerability in Combodo iTop v.3.1.0-2-11973 allows a local… CVSS 3.1MEDIUM 6.1
TI-2022-18593 Authenticated users of Combodo iTop can take over any account CVSS 3.1CRITICAL 9.6

See all 103 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences