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Vulnerability record · CVE-2025-11157 · published 1 January 2026

CVE-2025-11157: Deserialization of untrusted data vulnerability

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.

7.8 CVSS 3.1 High EPSS 0.30% · top 80.0% CWE-502 · Deserialization of untrusted data Deferred
7.8CVSS 3.1 base score
0.30%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
6References
15 Jul 2026Last modified by NVD

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

LinkTags
https://github.com/feast-dev/feast/commit/b2e37ff37953b68ae833f6874ab5bc510a4ca5fb
https://huntr.com/bounties/46d4d585-b968-4a76-80ce-872bc5525564
https://access.redhat.com/errata/RHSA-2026:10184
https://access.redhat.com/security/cve/CVE-2025-11157
https://bugzilla.redhat.com/show_bug.cgi?id=2426574
https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-11157.json

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Source: NIST National Vulnerability Database (record CVE-2025-11157), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.