CVE-2026-42543 IRIS has a Cross-Site Request Forgery (CSRF) issue
Attackers can force authenticated users to perform unintended actions on the IRIS incident response platform via CSRF.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-42543?
CVE-2026-42543 is a medium-severity vulnerability in dfir-iris iris-web, published on 4 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
IRIS is a web collaborative platform that helps incident responders share technical details during investigations. Versions prior to 2.4.28 are vulnerable to a cross-site request forgery attack, because they use the HTTP method `GET` to change state on the server. Version 2.4.28 contains a patch.
Weakness: CWE-650
Which versions are affected by CVE-2026-42543?
How do I fix CVE-2026-42543?
No fix has been published for CVE-2026-42543 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-42543 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-42543 exists.
Sources
Also known as GHSA-m73w-v4r5-vw9m.