CVE-2026-42539: CWE-201: Insertion of Sensitive Information Into Sent Data in dfir-iris iris-web
IRIS is a web collaborative platform that helps incident responders share technical details during investigations. Versions prior to 2.4.28 return sensitive data to the user which are not required for the client’s operation. Version 2.4.28 contains a patch.
AI Analysis
Technical Summary
CVE-2026-42539 affects the dfir-iris iris-web platform, a collaborative tool for incident responders. Versions before 2.4.28 return sensitive data to users that is not required for client operations, potentially exposing confidential information. The vulnerability is categorized under CWE-201, indicating improper handling of sensitive data in responses. A patch was introduced in version 2.4.28 to remediate this issue.
Potential Impact
The vulnerability allows sensitive information to be disclosed to users unnecessarily, which could lead to confidentiality breaches. There is no indication of impact on integrity or availability. The CVSS vector indicates network attack vector, low attack complexity, requires low privileges, no user interaction, and high confidentiality impact.
Mitigation Recommendations
Upgrade to version 2.4.28 or later, which contains the patch resolving this vulnerability. Since the vendor has released a fixed version, applying this official update is the recommended remediation.
CVE-2026-42539: CWE-201: Insertion of Sensitive Information Into Sent Data in dfir-iris iris-web
Description
IRIS is a web collaborative platform that helps incident responders share technical details during investigations. Versions prior to 2.4.28 return sensitive data to the user which are not required for the client’s operation. Version 2.4.28 contains a patch.
CVSS v3.1
Score 6.5medium
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
CVE-2026-42539 affects the dfir-iris iris-web platform, a collaborative tool for incident responders. Versions before 2.4.28 return sensitive data to users that is not required for client operations, potentially exposing confidential information. The vulnerability is categorized under CWE-201, indicating improper handling of sensitive data in responses. A patch was introduced in version 2.4.28 to remediate this issue.
Potential Impact
The vulnerability allows sensitive information to be disclosed to users unnecessarily, which could lead to confidentiality breaches. There is no indication of impact on integrity or availability. The CVSS vector indicates network attack vector, low attack complexity, requires low privileges, no user interaction, and high confidentiality impact.
Mitigation Recommendations
Upgrade to version 2.4.28 or later, which contains the patch resolving this vulnerability. Since the vendor has released a fixed version, applying this official update is the recommended remediation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-28T16:56:50.190Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a21ef3ae29bf47b50d43b3c
Added to database: 06/04/2026, 21:33:46 UTC
Last enriched: 06/12/2026, 09:56:29 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 61
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