CVE-2026-42547

Name: CVE-2026-42547
Creator: NVD / NIST
Published: 2026-06-04T22:16:53.917+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.17%

Last modified Jun 17, 2026

CVE-2026-42547 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. IRIS is a web collaborative platform that helps incident responders share technical details during investigations. In versions prior to 2.4.28, users can create alerts for customers that are not assigned to them. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

IRIS is a web collaborative platform that helps incident responders share technical details during investigations. In versions prior to 2.4.28, users can create alerts for customers that are not assigned to them. This can be abused to falsely attribute fake alerts to customers. In combination with Cross-Site Scripting, this can also be used to exfiltrate alerts from other customers. Version 2.4.28 contains a patch.

Metrics

CVSS 3.1

5.4/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS Probability

0.17%

7.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-863

References

Timeline

Published: Jun 4, 2026
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2026-42547?

How severe is CVE-2026-42547?

CVE-2026-42547 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.

How do I fix CVE-2026-42547?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-42547?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST