EUVD-2026-55816
GHSA-55p8-2553-ch47
Severity by source
AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:L/A:L
Scope changed to S:C because successful exploitation elevates the attacker from tenant context to Kubernetes cluster-admin, crossing a clear security boundary; I:H and A:H reflect full cluster control.
Primary rating from Vendor (redhat).
CVSS VectorVendor: redhat
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:L/A:L
Lifecycle Timeline
1DescriptionCVE.org
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.
AnalysisAI
Code injection in the Feast operator within Red Hat OpenShift AI (RHOAI) allows an authenticated, high-privileged tenant to embed malicious code into their feature repository, which an automated operator process then executes under elevated Kubernetes RBAC permissions. Successful exploitation yields credential theft and full cluster administrative control, representing a critical privilege escalation pathway despite the moderate vendor CVSS score of 5.5. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the attacker to be an authenticated tenant within a Red Hat OpenShift AI deployment with write access to a Feast feature repository - this corresponds to the PR:H designation in the CVSS vector. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The vendor CVSS score of 5.5 (Medium) is driven by the high attack complexity (AC:H) and high privilege requirement (PR:H), which significantly constrain exploitability - only an authenticated tenant who already has write access to a feature repository can trigger the flaw. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An authenticated RHOAI tenant with write access to a Feast feature repository crafts and commits a malicious payload into the repository. The Feast operator's automated reconciliation loop fetches and executes the repository content under its elevated Kubernetes ServiceAccount, which holds broad cluster permissions. … |
| Remediation | Consult the Red Hat security advisory at https://access.redhat.com/security/cve/CVE-2026-18942 for the official patch guidance; no specific fixed version number is independently confirmed from the available data at time of analysis. … Detailed patch versions, workarounds, and compensating controls in full report. |
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