CVE-2026-16628 oclif JIT Plugin Entry child_process.exec os command injection

Medium 4.8 Published Updated

Local attackers can execute arbitrary OS commands via the JIT Plugin Entry Handler in the oclif library.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-16628?

CVE-2026-16628 is a medium-severity command injection vulnerability in oclif, published on 22 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability was detected in oclif up to 4.23.16. Affected by this vulnerability is the function child_process.exec of the component JIT Plugin Entry Handler. Performing a manipulation of the argument jitPlugins results in os command injection. The attack is only possible with local access. The exploit is now public and may be used. The patch is named 939b045725e065baebc4587b8bccfd56731eed3d. To fix this issue, it is recommended to deploy a patch.

Weakness: CWE-78, CWE-77

Which versions are affected by CVE-2026-16628?

How do I fix CVE-2026-16628?

No fix has been published for CVE-2026-16628 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-16628 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-16628 exists.

Sources

Also known as GHSA-h75p-gxr9-842c.

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