CVE-2026-25999: Aiven Klaw

Medium severity, CVSS 4.3. EPSS: 0.4% chance of exploitation in the next 30 days.

Klaw is a self-service Apache Kafka Topic Management/Governance tool/portal. Prior to 2.10.2, there is an improper access control vulnerability that allows unauthorized users to trigger a reset or deletion of metadata for any tenant. By sending a crafted request to the /resetMemoryCache endpoint, an attacker can clear cached configurations, environments, and cluster data. This vulnerability is fixed in 2.10.2.

Affected products

• Aiven Klaw: before 2.10.2 (fixed in 2.10.2)

Published 2026-02-11. Last modified 2026-06-17.