Feast vulnerable to Deserialization of Untrusted Data
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | feast | < 0.54.0 | 0.54.0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-11157
- https://github.com/feast-dev/feast/pull/5643
- https://github.com/feast-dev/feast/commit/b2e37ff37953b68ae833f6874ab5bc510a4ca5fb
- https://github.com/feast-dev/feast
- https://huntr.com/bounties/46d4d585-b968-4a76-80ce-872bc5525564
- https://pypi.org/project/feast
- https://github.com/advisories/GHSA-34wm-4hw7-qfjv
- CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-502- Platform
- Python (PyPI)
- Package
feast- Disclosed
- 01.01.2026
- Updated
- 11.10.2026 13:19
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-1366 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-34wm-4hw7-qfjv - CC BY 4.0
Vulnerability history: feast
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 03.2025 01.2026
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- High 2
Disclosures per year
- 2025: 1
- 2026: 1
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