CVE-2026-40028
Received Received - Intake
Cross-Site Scripting in Hayabusa HTML Report Enables Code Execution

Publication date: 2026-04-08

Last updated on: 2026-04-17

Assigner: VulnCheck

Description
Hayabusa versions prior to 3.8.0 contain a cross-site scripting (XSS) vulnerability in its HTML report output that allows an attacker to execute arbitrary JavaScript when a user scans JSON-exported logs containing malicious content in the Computer field. An attacker can inject JavaScript into the Computer field of JSON logs that executes in the forensic examiner's browser session when viewing the generated HTML report, leading to information disclosure or code execution.
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Meta Information
Published
2026-04-08
Last Modified
2026-04-17
Generated
2026-06-16
AI Q&A
2026-04-09
EPSS Evaluated
2026-06-15
NVD
CVE-2026-40028
EUVD
EUVD-2026-20767
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
yamato-security hayabusa to 3.8.0 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
Attack-Flow Graph
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Mitigation Strategies

To mitigate this vulnerability, upgrade Hayabusa to version 3.8.0 or later, as versions prior to 3.8.0 contain the cross-site scripting (XSS) vulnerability.

Avoid scanning or generating HTML reports from JSON-exported logs that may contain malicious content in the Computer field until the upgrade is applied.

Impact Analysis

This vulnerability can lead to information disclosure or code execution within the forensic examiner's browser session. An attacker exploiting this flaw can execute arbitrary JavaScript, potentially stealing sensitive information or performing unauthorized actions on behalf of the user viewing the report.

Executive Summary

Hayabusa versions prior to 3.8.0 have a cross-site scripting (XSS) vulnerability in their HTML report output. This vulnerability allows an attacker to inject malicious JavaScript code into the Computer field of JSON-exported logs. When a forensic examiner views the generated HTML report, the injected JavaScript executes in their browser session.

Compliance Impact

The vulnerability allows an attacker to execute arbitrary JavaScript in the forensic examiner's browser session, potentially leading to information disclosure or code execution. Such unauthorized disclosure or compromise of sensitive information could negatively impact compliance with data protection regulations like GDPR or HIPAA, which require safeguarding personal and sensitive data against unauthorized access or breaches.

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