What’s Vulnerable › Vulnerabilities

CVE-2026-105311: Console-operator: streams for apache kafka console: cross-namespace kafkauser secret exfiltration via confused deputy

• Severity: high (CVSS 7.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-20 · updated 2026-10-21
• Weakness: CWE-441

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.

Affected products

• Red Hat streams for Apache Kafka 2: all versions
• Red Hat streams for Apache Kafka 3: all versions
• Red Hat StreamsHub Console for Apache Kafka®: from 0.2.0 before 0.12.10; from 0.13.0 before 0.14.2 — fixed in 0.12.10, 0.14.2

How to fix

Upgrade to a fixed version: Red Hat StreamsHub Console for Apache Kafka® 0.12.10, 0.14.2. Check the vendor advisory for mitigations.

References

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

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