CVE-2026-18948 (GCVE-0-2026-18948)

Vulnerability from cvelistv5 – Published: 2026-08-10 20:44 – Updated: 2026-08-11 04:41
VLAI
Title
Feast: feast: unsafe dill deserialization of registry-stored udfs — rce on feature server and registry server
Summary
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.
Severity
9.9 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Assigner
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:53263 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-18948 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2511167 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat OpenShift AI 3.3 Unaffected: 1786110033 , < * (rpm)
    cpe:/a:redhat:openshift_ai:3.3::el9
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Red Hat Red Hat OpenShift AI (RHOAI)     cpe:/a:redhat:openshift_ai
 Create a notification for this product.
Date Public
2026-08-10 18:52
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      "title": "feast: Feast: Unsafe dill deserialization of registry-stored UDFs \u2014 RCE on feature server and registry server",
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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