CVE-2026-108717: Combodo iTop 3.1.0 through 3.3.0 Missing Authorization via LinkSetController

Severity: medium (CVSS 6.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-11 · updated 2026-10-16
Weakness: CWE-862

Description

Combodo iTop 3.1.0 through 3.3.0 contains a missing authorization vulnerability in LinkSetController.php that allows authenticated console users to bypass profile grants by supplying arbitrary class and key parameters. Attackers can invoke the linkset delete, detach and get-remote-object routes to delete objects, clear external keys, and read object attributes without permission.

Affected products

Combodo iTop: from 3.1.0 through 3.3.0

References

https://github.com/Combodo/iTop
https://github.com/Combodo/iTop/blob/3.3.0/sources/Controller/Links/LinkSetController.php#L272-L301
https://github.com/Combodo/iTop/blob/3.3.0/sources/Controller/Links/LinkSetController.php#L43-L121
https://hackmd.io/@haind03/itop-linkset-unchecked-delete-detach-read-20261011
https://www.vulncheck.com/advisories/combodo-itop-3.1.0-through-3.3.0-missing-authorization-via-linksetcontroller

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