---
id: CVE-2026-82266
title: >-
  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
summary: >-
  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 a…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-306
vendor: redpanda-data
product: redpanda
affected:
  - redpanda <= 26.2.2
published: '2026-08-28'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T20:43:32.537'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-82266'
references:
  - url: 'https://github.com/redpanda-data/redpanda'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/redpanda-data/redpanda/blob/3cfce474a872090e7c74d14181885f5838c54cf2/conf/redpanda.yaml
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/redpanda-data/redpanda/blob/3cfce474a872090e7c74d14181885f5838c54cf2/src/v/security/request_auth.cc
    label: disclosure@vulncheck.com
  - url: 'https://github.com/redpanda-data/redpanda/issues/30989'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/redpanda-admin-api-unauthenticated-superuser-access-via-default-configuration
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
epss: 0.00621
epssPercentile: 0.4754
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-09-01T03:56:21.828198Z'
ingestedAt: '2026-09-24T15:45:56.694Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.