CVE-2026-82266
Unauthenticated Admin API grants superuser access on Redpanda
Is CVE-2026-82266 being exploited?
Not confirmed. CVE-2026-82266 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.34% probability of exploitation in the next 30 days.
How severe is CVE-2026-82266?
CVE-2026-82266 is rated Critical with a CVSS score of 9.3. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-82266?
Yes. A fix has been recorded for CVE-2026-82266. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-82266 affect?
CVE-2026-82266 affects Redpanda <= 26.2.2, Admin API (port 9644), Default config admin_api_require_auth=false. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-82266?
Upgrade Redpanda or enable admin_api_require_auth and bind Admin API to localhost
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated access to Admin API (port 9644) allows creating/deleting broker accounts, changing cluster config, and disrupting partition replication.
Immediate action required
- affected<= 26.2.2
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.