CVE-2026-42547
Deferred Deferred - Pending Action
Privilege Escalation in IRIS Web Platform

Publication date: 2026-06-04

Last updated on: 2026-06-08

Assigner: GitHub, Inc.

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.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-06-04
Last Modified
2026-06-08
Generated
2026-06-25
AI Q&A
2026-06-05
EPSS Evaluated
2026-06-24
NVD
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
dfir-iris iris to 2.4.28 (exc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-863 The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Compliance Impact

This vulnerability allows unauthorized users to create or modify alerts for customers they are not assigned to, potentially leading to false attribution of alerts and unauthorized access to sensitive incident data.

Such unauthorized access and manipulation of customer data could lead to violations of data protection regulations like GDPR or HIPAA, which require strict controls over access to personal and sensitive information.

Specifically, the exfiltration of alerts through Cross-Site Scripting (XSS) could result in data breaches, undermining confidentiality and integrity requirements mandated by these standards.

Therefore, organizations using affected versions of IRIS may face compliance risks if this vulnerability is exploited, emphasizing the importance of applying the patch in version 2.4.28 and enforcing stricter validation controls.

Detection Guidance

This vulnerability affects IRIS platform versions 2.4.27 and earlier, where users with alerts_write privileges can create or modify alerts for customers they are not assigned to. Detection involves verifying the version of the IRIS platform in use and monitoring alert creation or modification activities for unauthorized customer assignments.

To detect if your system is vulnerable, first check the IRIS version:

  • Check the IRIS version installed (replace with actual command depending on your environment):
  • For example, if IRIS is installed on a Linux server, you might run: `iris --version` or check the version in the application UI or configuration files.

To detect suspicious activity related to this vulnerability, monitor alert creation or modification logs for alerts assigned to customers not linked to the user performing the action.

  • Review application logs for alert creation/modification events where the customer assignment does not match the user's authorized customers.
  • If logs are stored in files, you can use commands like `grep` to search for alert creation or update entries, for example:
  • `grep -i 'alert create' /path/to/iris/logs/*` or `grep -i 'alert update' /path/to/iris/logs/*`
  • Analyze these logs to identify alerts assigned to customers not authorized for the user.

Ultimately, the recommended mitigation is to update IRIS to version 2.4.28 or later, which contains the patch preventing unauthorized alert assignments.

Executive Summary

This vulnerability exists in the IRIS web collaborative platform versions prior to 2.4.28. It allows users to create alerts for customers who are not assigned to them. This flaw can be exploited to falsely attribute fake alerts to other customers. Additionally, when combined with Cross-Site Scripting (XSS), it can be used to exfiltrate alerts belonging to other customers.

Impact Analysis

The vulnerability can lead to unauthorized creation of fake alerts attributed to other customers, potentially causing misinformation or confusion. Furthermore, if combined with Cross-Site Scripting, it can result in the unauthorized disclosure of sensitive alert information from other customers, compromising confidentiality.

Mitigation Strategies

To mitigate this vulnerability, you should upgrade IRIS to version 2.4.28 or later, as this version contains the patch that fixes the issue.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-42547. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart