CVE-2026-82266: Redpanda-Data Redpanda

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Redpanda through 26.2.2 binds the Admin API to 0.0.0.0:9644 with admin_api_require_auth defaulting to false, treating unauthenticated requests as superusers. Attackers can reach port 9644 without credentials to create and delete broker accounts, modify cluster configuration, and disrupt partition replication.

Affected products

• Redpanda-Data Redpanda: up to and including 26.2.2

Published 2026-08-28. Last modified 2026-09-24.