CVE-2026-40028

low-risk
Published 2026-04-08

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.

Do I need to act?

-
0.03% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.4/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Hayabusa

Affected Vendors

Yamato-Security

References (3)

Release Notes https://github.com/Yamato-Security/hayabusa/releases/tag/v3.8.0
Third Party Advisory https://mobasi.ai/sentinel
Third Party Advisory https://www.vulncheck.com/advisories/hayabusa-xss-via-json-log-import
26
/ 100
low-risk
Severity 21/34 · High
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal