7.7High
CVE-2026-18941Feast: feast-operator: feast: default authentication mode is no_auth — shared multi-tenant instances deployed without authentication
Description
A flaw was found in Feast and feast-operator. The default configuration for both the Feast SDK and the feast-operator is "no_auth," meaning no security manager is installed. This default allows unauthenticated and unauthorized access to feature-server, registry-server, and offline-server endpoints. A remote attacker, by exploiting this missing authentication, could achieve remote code execution (RCE) by storing a malicious User-Defined Function (UDF) on the feature-server, trigger a denial of service (DoS) by forcing re-materialization of all tenant features, and gain unauthorized access to cross-tenant data.
Weakness (CWE):
CWE-306
Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.
Affected products and versions
| Vendor | Product | Versions | |
|---|---|---|---|
| openshift ai | 2.25 | — | |
| openshift ai | 3.3 | — | |
| openshift ai | 3.4 | — | |
| Red Hat | Red Hat OpenShift AI 2.25 | all versions | |
| Red Hat | Red Hat OpenShift AI 3.3 | all versions | |
| Red Hat | Red Hat OpenShift AI 3.4 | all versions | |
| Red Hat | Red Hat OpenShift AI (RHOAI) | — |
References and patches
- RHSA-2026:53261 vendor-advisory
- RHSA-2026:53262 vendor-advisory
- RHSA-2026:53263 vendor-advisory
- RHSA-2026:84734 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-18941 vdb-entry
- RHBZ#2511116 issue-tracking