CVE-2026-92778: Yahoo Cmak

Medium severity, CVSS 5.4. EPSS: 0.4% chance of exploitation in the next 30 days.

CMAK through 3.0.0.6 fails to apply the scheduled leader election feature toggle to HTML form routes, allowing attackers to bypass the feature gate. Attackers can access the form endpoints to start and stop the recurring election scheduler, disrupting leadership across managed Kafka clusters.

Affected products

• Yahoo Cmak: up to and including 3.0.0.6

Published 2026-09-16. Last modified 2026-09-23.