CVE-2026-96740 Red Hat CVE debrief

Who should care

Defenders responsible for Apache Kafka and StreamsHub Console deployments should assess exposure and prioritize verification of affected versions, review of Console CR configurations, and implementation of compensating controls.

Why it matters

CVE-2026-96740 allows a Console CR author to exfiltrate the console-api ServiceAccount token to an attacker-controlled broker, potentially leading to unauthorized access and data breaches. Defenders should prioritize verification of affected versions, review of Console CR configurations, and implementation of compensating controls.

• Verify affected versions of StreamsHub Console for Apache Kafka to determine exposure
• Review Console CR configurations to prevent security-sensitive keys from being exploited
• Implement compensating controls to prevent token exfiltration and monitor for suspicious activity
• Prioritize remediation based on the severity of the vulnerability and potential impact on the organization

Technical summary

The StreamsHub Console for Apache Kafka copies tenant-supplied Kafka client properties into the console-api AdminClient configuration without filtering security-sensitive keys, allowing a Console CR author to set config.providers and bootstrap.servers to exfiltrate the console-api ServiceAccount token to an attacker-controlled broker. This insecure handling of Kafka client properties enables unauthorized access and potential data breaches. Defenders should prioritize verifying affected versions, reviewing Console CR configurations, and implementing compensating controls to prevent token exfiltration.

Defensive priority

Defenders should prioritize verifying affected versions, reviewing Console CR configurations, and implementing compensating controls to prevent token exfiltration.

Recommended defensive actions

• Verify affected versions of StreamsHub Console for Apache Kafka
• Review Console CR configurations for security-sensitive keys
• Implement compensating controls to prevent token exfiltration
• Monitor for suspicious activity related to config.providers and bootstrap.servers
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but additional information on affected versions and remediation is limited. Further verification is needed to determine the full scope of the vulnerability and to implement effective mitigations. The StreamsHub Console for Apache Kafka's insecure handling of Kafka client properties allows for potential security breaches. Defenders should verify affected versions, review configurations, and implement compensating controls.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.