9.9Critical
CVE-2026-18948Feast: feast: unsafe dill deserialization of registry-stored udfs — rce on feature server and registry server
Description
A flaw was found in Feast. The system improperly deserializes user-defined functions (UDFs) stored in its registry, which are serialized using the 'dill' library. This allows a remote attacker to store a malicious UDF, leading to unauthenticated arbitrary code execution on the feature server in default configurations. An authenticated attacker can also achieve arbitrary code execution on the registry server by bypassing authorization checks during deserialization. This vulnerability can result in cross-tenant data access and lateral movement within the system.
Weakness (CWE):
CWE-502
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-2026:60520 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-18948 vdb-entry
- RHBZ#2511167 issue-tracking