CVE-2026-18941: high-severity vulnerability in Red Hat OpenShift AI 2.25
Feast: feast-operator: feast: default authentication mode is no_auth — shared multi-tenant instances deployed without authentication
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.7epss 0.9%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Affected products
Red Hat · Red Hat OpenShift AI 2.25Red Hat · Red Hat OpenShift AI 3.3Red Hat · Red Hat OpenShift AI 3.4Red Hat · Red Hat OpenShift AI (RHOAI)Related CVEs — Red Hat OpenShift AI 2.25
In the same product, most dangerous first.
CVE-2026-33845HIGHGnutls: gnutls: denial of service via dtls zero-length fragmentEPSS 2.1%CVE-2023-52355HIGHLibtiff: tiffrasterscanlinesize64 produce too-big size and could cause oomEPSS 1.8%CVE-2026-42009HIGHGnutls: gnutls: denial of service via dtls packet reordering vulnerabilityEPSS 1.3%CVE-2026-33846HIGHGnutls: gnutls: denial of service via heap buffer overflow in dtls handshake fragment reassemblyEPSS 1.3%CVE-2026-18948CRITICALFeast: feast: unsafe dill deserialization of registry-stored udfs — rce on feature server and registry serverEPSS 1.1%CVE-2026-42010HIGHGnutls: gnutls: authentication bypass via nul character in usernameEPSS 1.1%
References
https://access.redhat.com/errata/RHSA-2026:53261https://access.redhat.com/errata/RHSA-2026:53262https://access.redhat.com/errata/RHSA-2026:53263https://access.redhat.com/errata/RHSA-2026:84734https://access.redhat.com/security/cve/CVE-2026-18941https://bugzilla.redhat.com/show_bug.cgi?id=2511116