Vulnerability details

CVE-2026-18947

Feast: feast: authorization bypass in /materialize endpoints enables dos via unauthorized full re-materialization

CVSS 3.1

8.5High

Official description

A flaw was found in Feast. An authorization bypass vulnerability exists in the /materialize and /materialize-incremental endpoints. By sending a specially crafted request that omits the feature_views field, an attacker can bypass intended permission checks. This allows an unauthenticated remote attacker, or any authenticated user, to trigger a full re-materialization of all feature views. The consequence is a Denial of Service (DoS) due to data corruption and significant resource consumption across all tenants.

CVSS scores

Score	Version	Source	Vector
8.5High	3.1	CVEProject cvelistV5 (CNA) (redhat)	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L`

Affected products

Vendor	Product	Versions	Source
No product information recorded.

References and advisories

https://access.redhat.com/errata/RHSA-2026:53261 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:53263 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:84734 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-18947 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2511164 issue-trackingx_refsource_REDHAT

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Details

Published: 2026-08-11
Last updated: 2026-10-19
State: Published
Assigner (CNA): redhat

Exploit prediction (EPSS)

0.59%

Probability of exploitation in 30 days

48.5%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Partial

Weaknesses (CWE)

CWE-862
Missing Authorization