CVE-2026-40030CWE-78

parseusbs < 1.9 Command Injection via Volume Path Argument

High · published April 8, 2026

CVSS v4.0
8.4
EPSS
1%
Percentile
67.6
In the wild
Unconfirmed
What it is

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 path arguments containing shell metacharacters. An attacker can provide a crafted volume path via the -v flag that injects arbitrary commands during volume content enumeration.

The record
Technical detail
CVSS v4.0
8.4 · HIGH
Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.01187 · 67.6th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-04-08T21:35Z
EPSS history
Timeline
  • 08 APR 21:35Z
    parseusbs < 1.9 Command Injection via Volume Path Argument
    cvelistv5