Description
A flaw was found in KServe. A namespace-scoped user with create/update permissions on InferenceService custom resources can exploit this vulnerability by providing a malicious `storageUri`. This Server-Side Request Forgery (SSRF) vulnerability allows the `storage-initializer` init container to issue arbitrary outbound HTTP/HTTPS requests from inside the cluster. This can lead to information disclosure, including credential theft for the node's Identity and Access Management (IAM) role or access to internal cluster services.
Published: 2026-10-28
Score: 7.7 High
EPSS: n/a
KEV: No
Impact: Server‑Side Request Forgery enabling arbitrary outbound HTTP/HTTPS requests and potential credential theft
Action: Immediate Patch
AI Analysis

Impact

The vulnerability exists in KServe’s storage‑initializer init container, which trusts a user‑supplied storageUri. An attacker who can create or edit InferenceService custom resources within their namespace may specify a malicious storageUri that points to any external URL. When the init container resolves this URI, it inadvertently performs an HTTP/HTTPS request from inside the cluster, exposing a classic Server‑Side Request Forgery (SSRF) flaw. This can reveal internal network details, exfiltrate node IAM credentials, or access other cluster services that should remain isolated.

Affected Systems

Red Hat OpenShift AI (RHOAI) deployments that run KServe within a namespace where users have create/update permissions on InferenceService resources. The flaw does not affect RHOAI hosts or components that do not use the storage‑initializer init container.

Risk and Exploitability

The CVSS score of 7.7 categorizes this issue as high severity, and the lack of an EPSS score indicates no publicly known exploitation data yet. The flaw is not currently listed in CISA KEV, but the attack surface is significant because any privileged user can trigger external calls. The SSRF vulnerability permits uncontrolled outbound traffic, allowing an attacker to pivot within the cluster and potentially compromise IAM roles. The resolver logic in the init container does not impose domain restrictions, making exploitation straightforward without additional prerequisites.

Generated by OpenCVE AI on October 28, 2026 at 21:40 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade Red Hat OpenShift AI (or the underlying KServe component) to the latest release that removes the vulnerable storage‑initializer logic or patches the SSRF flaw.
  • Configure an admission webhook or policy that validates the storageUri field, rejecting external URLs or enforcing a whitelist of trusted domains before the InferenceService resource is admitted.
  • Apply network policies or firewall rules to block outbound traffic from inference‑service pods to untrusted domains, limiting the impact of any SSRF execution.

Generated by OpenCVE AI on October 28, 2026 at 21:40 UTC.

Tracking

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Advisories

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History

Wed, 28 Oct 2026 20:00:00 +0000

Type Values Removed Values Added
Description A flaw was found in KServe. A namespace-scoped user with create/update permissions on InferenceService custom resources can exploit this vulnerability by providing a malicious `storageUri`. This Server-Side Request Forgery (SSRF) vulnerability allows the `storage-initializer` init container to issue arbitrary outbound HTTP/HTTPS requests from inside the cluster. This can lead to information disclosure, including credential theft for the node's Identity and Access Management (IAM) role or access to internal cluster services.
Title Kserve: kserve: server-side request forgery via malicious storageuri
First Time appeared Redhat
Redhat openshift Ai
Weaknesses CWE-918
CPEs cpe:/a:redhat:openshift_ai
Vendors & Products Redhat
Redhat openshift Ai
References
Metrics cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N'}


Subscriptions

Redhat Openshift Ai
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-10-28T19:52:51.913Z

Reserved: 2026-06-26T18:04:43.443Z

Link: CVE-2026-13451

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-28T20:17:23.037

Modified: 2026-10-28T20:17:23.160

Link: CVE-2026-13451

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-28T22:00:18Z

Weaknesses
  • CWE-918

    Server-Side Request Forgery (SSRF)