CVE-2026-42540 IRIS has a Mass Assignment issue

Medium 4.3 Published Updated

Attackers can modify database values via manipulated API requests in the IRIS incident response platform, requiring a patch to fix.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-42540?

CVE-2026-42540 is a medium-severity vulnerability in dfir-iris iris-web, published on 4 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

IRIS is a web collaborative platform that helps incident responders share technical details during investigations. Versions prior to 2.4.28 allow a user to alter values in the database via manipulated API requests. Version 2.4.28 contains a patch.

Weakness: CWE-915

Which versions are affected by CVE-2026-42540?

How do I fix CVE-2026-42540?

No fix has been published for CVE-2026-42540 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-42540 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-42540 exists.

Sources

Also known as GHSA-w78h-mx7h-qm3h.

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