CVE-2026-105311

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.

CVSS v3 7.7 HIGH

7.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.1 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-105311
https://bugzilla.redhat.com/show_bug.cgi?id=2510875

Configurations

No configuration.

History

20 Oct 2026, 12:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-20 12:17

Updated : 2026-10-21 21:17

NVD link : CVE-2026-105311

Mitre link : CVE-2026-105311

CVE.ORG link : CVE-2026-105311

JSON object : View

Products Affected

No product.

CWE

CWE-441

Unintended Proxy or Intermediary ('Confused Deputy')

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