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Not in CISA KEV
HIGH severity

CVE-2026-16283

HIGH

CVE-2026-16283 is a high-severity (CVSS 8.8) OS Command Injection vulnerability. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

Improper neutralization of special elements used in an OS command ('OS command injection') vulnerability in Osbil Technology Ltd.Osbil Technology Ltd. OPanel allows OS Command Injection. This…

Published
Updated
Affected
—
Patched
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Exploits
None indexed
Exploitation data as of Nov 9, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Description

Improper neutralization of special elements used in an OS command ('OS command injection') vulnerability in Osbil Technology Ltd.Osbil Technology Ltd. OPanel allows OS Command Injection.

This issue affects oPanel: before 1.20.66.

Detection & mitigation playbook

Vulnerability

  1. Detect

    Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

  2. Remediation status

    The records we use list no fixed release for CVE-2026-16283. Check the upstream advisory for a patched version, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.

Frequently Asked Questions

Improper neutralization of special elements used in an OS command ('OS command injection') vulnerability in Osbil Technology Ltd.Osbil Technology Ltd. OPanel allows OS Command Injection. This issue affects oPanel: before 1.20.66.
O3 Security · Impact-Aware SCA

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