CVE-2026-42547

IRIS Alerts Can be Falsely Attributed to Customers

CVSS 5.4 MEDIUMEPSS 0.2%CWE-863

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.4EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

04 Jun 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

dfir-iris · iris-web

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References

https://github.com/dfir-iris/iris-web/security/advisories/GHSA-8hwq-v6vm-9grr http://www.openwall.com/lists/oss-security/2026/05/19/12