CVE-2026-42547: CWE-863: Incorrect Authorization in dfir-iris iris-web
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.
AI Analysis
Technical Summary
The vulnerability identified as CVE-2026-42547 in dfir-iris iris-web is an incorrect authorization flaw (CWE-863) affecting versions before 2.4.28. Users with limited privileges can create alerts for customers they are not assigned to, potentially causing false attribution of alerts. Additionally, when exploited alongside Cross-Site Scripting vulnerabilities, it can facilitate unauthorized exfiltration of alert data belonging to other customers. The issue is resolved by updating to version 2.4.28.
Potential Impact
The vulnerability allows unauthorized creation of alerts for customers not assigned to the user, which can lead to false attribution of alerts. This undermines the integrity of incident response data. Combined with Cross-Site Scripting, it can also result in unauthorized disclosure of alert information from other customers, impacting confidentiality. There is no indication of availability impact. The CVSS score is 5.4 (medium severity).
Mitigation Recommendations
Upgrade dfir-iris iris-web to version 2.4.28 or later, where this authorization issue is patched. No other specific mitigations are indicated. Patch status is confirmed by the vendor advisory stating version 2.4.28 contains the fix.
CVE-2026-42547: CWE-863: Incorrect Authorization in dfir-iris iris-web
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 v3.1
Score 5.4medium
Affected software
pkg:github/dfir-iris/iris-webRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2026-42547 in dfir-iris iris-web is an incorrect authorization flaw (CWE-863) affecting versions before 2.4.28. Users with limited privileges can create alerts for customers they are not assigned to, potentially causing false attribution of alerts. Additionally, when exploited alongside Cross-Site Scripting vulnerabilities, it can facilitate unauthorized exfiltration of alert data belonging to other customers. The issue is resolved by updating to version 2.4.28.
Potential Impact
The vulnerability allows unauthorized creation of alerts for customers not assigned to the user, which can lead to false attribution of alerts. This undermines the integrity of incident response data. Combined with Cross-Site Scripting, it can also result in unauthorized disclosure of alert information from other customers, impacting confidentiality. There is no indication of availability impact. The CVSS score is 5.4 (medium severity).
Mitigation Recommendations
Upgrade dfir-iris iris-web to version 2.4.28 or later, where this authorization issue is patched. No other specific mitigations are indicated. Patch status is confirmed by the vendor advisory stating version 2.4.28 contains the fix.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-28T16:56:50.191Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a21ef3ae29bf47b50d43b47
Added to database: 06/04/2026, 21:33:46 UTC
Last enriched: 06/12/2026, 09:58:56 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 67
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