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VULNERABILITIES

CVE-2026-18948 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:9.9 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://access.redhat.com/errata/RHSA-2026:53261 [email protected]
https://access.redhat.com/errata/RHSA-2026:53262 [email protected]
https://access.redhat.com/errata/RHSA-2026:53263 [email protected]
https://access.redhat.com/errata/RHSA-2026:60520 [email protected]
https://access.redhat.com/security/cve/CVE-2026-18948 [email protected]

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-502Deserialization of Untrusted DataCISA-ADP

Affected Products

No affected product data is available for this CVE.

Change History

6 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-18948
NVD Published Date:
Aug 10, 2026
NVD Last Modified:
Aug 27, 2026
Source:
[email protected]
CVE-2026-18948 Details - Not Deferred