Feast-operator: feast: feast apply cronjob runs user python with feature-server sa — tenant code to sa token escalation
Summary
| CVE | CVE-2026-18942 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-10 21:17:20 UTC |
| Updated | 2026-11-09 13:17:08 UTC |
| Description | A flaw was found in the Feast operator. A malicious tenant could inject arbitrary code into their feature repository. This code would be executed by an automated process with elevated privileges, allowing the tenant to steal sensitive credentials. This could lead to a direct escalation of privileges, granting the tenant administrative control over the Kubernetes cluster. |
Risk And Classification
Primary CVSS: v3.1 5.5 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:L/A:L
EPSS: 0.003900000 probability, percentile 0.333630000 (date 2026-11-09)
Problem Types: CWE-250 | CWE-94 | CWE-250 Execution with Unnecessary Privileges | CWE-94 CWE-94 Improper Control of Generation of Code ('Code Injection')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 5.5 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:L/A:L |
| 3.1 | CNA | CVSS | 5.5 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:L/A:L |
CVSS v3.1 Breakdown
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:L/A:L
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Red Hat | Red Hat OpenShift AI 2.25 | unaffected 1786110051 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI 3.4 | unaffected 1786107278 * rpm | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI RHOAI | Not specified | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI RHOAI | Not specified | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI RHOAI | Not specified | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI RHOAI | Not specified | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI RHOAI | Not specified | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI RHOAI | Not specified | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI RHOAI | Not specified | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI RHOAI | Not specified | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI RHOAI | Not specified | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI RHOAI | Not specified | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI RHOAI | Not specified | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI RHOAI | Not specified | Not specified |
| CNA | Red Hat | Red Hat OpenShift AI RHOAI | Not specified | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| access.redhat.com/security/cve/CVE-2026-18942 | [email protected] | access.redhat.com | |
| bugzilla.redhat.com/show_bug.cgi | [email protected] | bugzilla.redhat.com | |
| access.redhat.com/errata/RHSA-2026:53261 | [email protected] | access.redhat.com | |
| access.redhat.com/errata/RHSA-2026:53262 | [email protected] | access.redhat.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-08-04T17:42:47.179Z | Reported to Red Hat. |
| CNA | 2026-08-10T18:52:00.874Z | Made public. |
Workarounds
CNA: Configure the Feast operator to use a dedicated, minimally-privileged ServiceAccount for the `feast apply` CronJob, ensuring `automountServiceAccountToken: false` is set. Apply a restricted `securityContext` to the CronJob pod and implement network policies to limit egress to only required registry endpoints. Ensure the CronJob ServiceAccount is separate from the feature-server ServiceAccount.