CVE-2026-18941 — Feast: feast-operator: feast: default authentication mode is no_auth — shared multi-tenant instances deployed without authentication
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. Thi…
Published: 2026-08-10 · CVSS: 7.7 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7