What is CVE-2026-85672?

CVE-2026-85672 is a critical-severity vulnerability, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-09-04.

How severe is CVE-2026-85672?

Critical severity. CVSS v3 base score is 9.8 out of 10.

CVE-2026-85672

CVE-2026-85672

zerox 1.1.20 contains an OS command injection vulnerability in the file download mechanism where the temporary file extension derived from document URLs is interpolated unsanitized into shell commands executed by poppler utilities. Attackers can craft document URLs with malicious file extensions containing command substitution syntax to execute arbitrary OS commands before document processing occurs.

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

disclosure@vulncheck.com
disclosure@vulncheck.com
disclosure@vulncheck.com
disclosure@vulncheck.com

Frequently asked questions

What is CVE-2026-85672?: CVE-2026-85672 is a critical-severity vulnerability, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-09-04.
How severe is CVE-2026-85672?: Critical severity. CVSS v3 base score is 9.8 out of 10.