What is CVE-2026-23537?

CVE-2026-23537 is a critical-severity vulnerability in Feast Feature Server, classified under Missing Authorization. CVSS score: 9.1/10. Published 2026-07-01.

How severe is CVE-2026-23537?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in Feast Feature Server

CVE-2026-23537

A vulnerability has been identified in the Feast Feature Server’s `/save-document` endpoint that allows an unauthenticated remote attacker to write arbitrary JSON files to the server's filesystem. Although the system attempts to restrict f…

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

Affected products

Feast Feature Server — versions 0
Red Hat Openshift Ai (Rhoai)

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking)
secalert@redhat.com

Frequently asked questions

What is CVE-2026-23537?: CVE-2026-23537 is a critical-severity vulnerability in Feast Feature Server, classified under Missing Authorization. CVSS score: 9.1/10. Published 2026-07-01.
How severe is CVE-2026-23537?: Critical severity. CVSS v3 base score is 9.1 out of 10.