What’s Vulnerable › Vulnerabilities

CVE-2026-40030: parseusbs < 1.9 Command Injection via Volume Path Argument

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-08 · updated 2026-10-27
• Weakness: CWE-78

Description

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.

Affected products

• khyrenz parseusbs: before 1.9 — fixed in 1.9
• khyrenz parseusbs: before 1.9.0 — fixed in 1.9.0

How to fix

Upgrade to a fixed version: khyrenz parseusbs 1.9; khyrenz parseusbs 1.9.0. Check the vendor advisory for mitigations.

References

• https://github.com/khyrenz/parseusbs/commit/99f05996494e7e41ea0c7e13145ba20eb793e46b
• https://github.com/khyrenz/parseusbs/pull/10
• https://mobasi.ai/sentinel
• https://www.vulncheck.com/advisories/parseusbs-command-injection-via-volume-path-argument

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