CVE-2026-105311
Console-operator: streams for apache kafka console: cross-namespace kafkauser secret exfiltration via confused deputy
- State
- Published
- Severity
- 7.7 High
- Published
- Oct 20, 2026
- Updated
- Oct 21, 2026
- Reserved
- Oct 5, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.7 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N | redhat |
Weaknesses
- CWE-441 Unintended Proxy or Intermediary ('Confused Deputy')
Affected Products
| Product | Versions |
|---|---|
StreamsHub Console for Apache Kafka®Red Hat |
|
streams for Apache Kafka 2Red Hat | |
streams for Apache Kafka 3Red Hat |
References
- https://access.redhat.com/security/cve/CVE-2026-105311vdb-entry
- RHBZ#2510875issue-tracking
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