---
id: CVE-2026-105311
title: >-
  Console-operator: streams for apache kafka console: cross-namespace kafkauser
  secret exfiltration via confused deputy
summary: >-
  The StreamsHub Console operator acts as a confused deputy: a Kubernetes tenant
  with permission to create a Console custom resource can set
  spec.kafkaClusters[].credentials.kafkaUser.namespace to any namespace. The
  operator, running with …
severity: high
cvss: 7.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-441
vendor: Red Hat
product: console
affected:
  - console >= 0.2.0 < 0.12.10
  - console >= 0.13.0 < 0.14.2
  - console-operator (all versions)
  - console-operator (all versions)
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T11:30:09.568Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-105311'
references:
  - url: 'https://access.redhat.com/security/cve/CVE-2026-105311'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2510875'
    label: RHBZ#2510875
tags:
  - cve.org
ingestedAt: '2026-10-20T12:05:07.317Z'
---

## Overview

The StreamsHub Console operator acts as a confused deputy: a Kubernetes tenant with permission to create a Console custom resource can set spec.kafkaClusters[].credentials.kafkaUser.namespace to any namespace. The operator, running with cluster-wide Secrets RBAC, reads the victim-namespace KafkaUser Secret (SASL credentials or TLS private keys) and writes the plaintext material into a Secret in the attacker's namespace. No same-namespace check or allowlist exists anywhere in the code path.

## Affected

- `console >= 0.2.0 < 0.12.10`
- `console >= 0.13.0 < 0.14.2`
- `console-operator (all versions)`
- `console-operator (all versions)`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

### Workarounds

1. Restrict Console CR RBAC — remove create/update verbs on consoles.console.streamshub.github.com from tenant-facing roles. Only trusted cluster administrators should manage Console CRs.
2. Audit existing Console CRs — review all Console CRs for kafkaUser.namespace fields pointing outside the CR's own namespace.
3. Network policy (defense-in-depth) — apply NetworkPolicy to restrict operator pod egress.