Is CVE-2026-86543 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-86543?

CVE-2026-86543 has a CVSS v3 severity of CRITICAL (9.8).

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CVE-2026-86543

Description

knowns versions before 0.30.0 serve the management API without authentication on all network interfaces by default, with no password required on fresh installations. Attackers can access the unauthenticated /api/tunnel/start endpoint to provision a public tunnel and republish the API at a publicly accessible address.