What is CVE-2026-42543?

CVE-2026-42543 is a medium-severity vulnerability in Dfir-iris Iris-web, classified under Trusting HTTP Permission Methods on the Server Side. CVSS score: 4.3/10. Published 2026-06-04.

How severe is CVE-2026-42543?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Dfir-iris Iris-web

CVE-2026-42543

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 ch…

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

Affected products

Dfir-iris Iris-web — versions < 2.4.28

Weakness classification (CWE)

CWE-650 — Trusting HTTP Permission Methods on the Server Side

References

security-advisories@github.com (x_refsource_CONFIRM)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-42543?: CVE-2026-42543 is a medium-severity vulnerability in Dfir-iris Iris-web, classified under Trusting HTTP Permission Methods on the Server Side. CVSS score: 4.3/10. Published 2026-06-04.
How severe is CVE-2026-42543?: Medium severity. CVSS v3 base score is 4.3 out of 10.