EUVD Vulnerability Catalog
EUVD-2026-55818
Severity: CRITICAL
Base Score: 9.9
CVSS Version: 3.1
Vulnerability 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.
CVSS Vector Analysis
Below is the complete, human-readable breakdown of the CVSS metric string: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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Attack Vector (AV): Network
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Attack Complexity (AC): Low
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Privileges Required (PR): Low
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User Interaction (UI): None
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Scope (S): Changed
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Confidentiality Impact (C): High
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Integrity Impact (I): High
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Availability Impact (A): High
Affected Vendors & Systems
Vendor
Red Hat
References & Advisory Links
- https://access.redhat.com/errata/RHSA-2026:53261
- https://access.redhat.com/errata/RHSA-2026:53262
- https://access.redhat.com/errata/RHSA-2026:53263
- https://access.redhat.com/errata/RHSA-2026:60520
- https://access.redhat.com/security/cve/CVE-2026-18948
- https://bugzilla.redhat.com/show_bug.cgi?id=2511167
Metadata Profile
Database Authority
European Union Agency for Cybersecurity (ENISA) EUVD
Assigner
redhat
EPSS Probability
1.08
Known Aliases
GHSA-gg2p-37pv-v7fq
CVE-2026-18948
Published On
2026-08-10
Last Updated
2026-09-28