CVE-2026-82266
Redpanda Admin API Unauthenticated Superuser Access via Default Configuration
- State
- Published
- Severity
- 9.3 Critical
- Published
- Aug 28, 2026
- Updated
- Sep 24, 2026
- Reserved
- Aug 28, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-306 Missing Authentication for Critical Function
Affected Products
| Product | Versions |
|---|---|
redpandaredpanda-data |
|
References
- GitHub Issue #30989issue-tracking
- https://github.com/redpanda-data/redpandaproduct
- Vulnerable code: redpanda.yamltechnical-description
- Vulnerable code: request_auth.cctechnical-description
- VulnCheck Advisory: Redpanda Admin API Unauthenticated Superuser Access via Default Configurationthird-party-advisory
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