What is CVE-2026-40030?

CVE-2026-40030 is a high-severity vulnerability in Khyrenz Parseusbs, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-04-08.

How severe is CVE-2026-40030?

High severity. CVSS v3 base score is 7.8 out of 10.

RCE in Khyrenz Parseusbs

CVE-2026-40030

parseusbs before 1.9 contains an OS command injection vulnerability where the volume listing path argument (-v flag) is passed unsanitized into an os.popen() shell command with ls, allowing arbitrary command injection via crafted volume pa…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.000 (7.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Khyrenz Parseusbs — versions 99f05996494e7e41ea0c7e13145ba20eb793e46b, 1.9.0, 0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

Pull Request (product)
Patch Commit (patch)
Mobasi Sentinel Vulnerability Index (vendor-advisory)
VulnCheck Advisory: parseusbs < 1.9 Command Injection via Volume Path Argument (third-party-advisory)

Frequently asked questions

What is CVE-2026-40030?: CVE-2026-40030 is a high-severity vulnerability in Khyrenz Parseusbs, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-04-08.
How severe is CVE-2026-40030?: High severity. CVSS v3 base score is 7.8 out of 10.