Vulnerability · Published Apr 8, 2026 · Assigned by VulnCheck

CVE-2026-40028Hayabusa < 3.8.0 XSS via JSON Log Import

Medium 5.4

In plain English

A medium-severity cross-site scripting in hayabusa from Yamato-Security. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.2%top 89.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Yamato-Security	hayabusa	0 – through 3.7.0

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References

Release Notes product
Mobasi Sentinel Vulnerability Index vendor-advisory
VulnCheck Advisory: Hayabusa < 3.8.0 XSS via JSON Log Import third-party-advisory