CVE-2026-47724
Auth bypass in nebula-mesh API allows operator keys to gain cross-tenant admin privileges.
Is CVE-2026-47724 being exploited?
Not confirmed. CVE-2026-47724 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 0.48% probability of exploitation in the next 30 days.
How severe is CVE-2026-47724?
CVE-2026-47724 is rated Critical with a CVSS score of 9.9. 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-2026-47724?
Yes. A fix has been recorded for CVE-2026-47724. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-47724 affect?
CVE-2026-47724 affects nebula-mesh < 0.3.4, self-hosted nebula control planes, operator API keys. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-47724?
Upgrade to nebula-mesh v0.3.4 and rotate operator API keys
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Non-admin operator API keys can perform cross-tenant admin actions (modify hosts, networks, firewalls), enabling privilege escalation and tenant compromise.
Immediate action required
- affected< 0.3.4
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.