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Vulnerability · Published Aug 10, 2026 · Assigned by redhat

CVE-2026-18941Feast: feast-operator: feast: default authentication mode is no_auth — shared multi-tenant instances deployed without authentication

High 7.7

In plain English

A high-severity missing authentication in Red Hat OpenShift AI 2.25 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% of all known vulnerabilities).

Severity (CVSS 3.1)7.7High
Exploit odds (30 days)0.9%top 40.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat OpenShift AI 2.25 see references
Red Hat Red Hat OpenShift AI 3.3 see references
Red Hat Red Hat OpenShift AI 3.4 see references
Red Hat Red Hat OpenShift AI 3.4 see references
Red Hat Red Hat OpenShift AI 3.4 see references
Red Hat Red Hat OpenShift AI 3.4 see references
Red Hat Red Hat OpenShift AI (RHOAI) see references
Red Hat Red Hat OpenShift AI (RHOAI) see references
Red Hat Red Hat OpenShift AI (RHOAI) see references
Red Hat Red Hat OpenShift AI (RHOAI) see references
Red Hat Red Hat OpenShift AI (RHOAI) see references
Red Hat Red Hat OpenShift AI (RHOAI) see references
Red Hat Red Hat OpenShift AI (RHOAI) see references
Red Hat Red Hat OpenShift AI (RHOAI) see references
Red Hat Red Hat OpenShift AI (RHOAI) see references
Red Hat Red Hat OpenShift AI (RHOAI) see references

Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

References