CVE-2026-86543: Missing Authentication for Critical Function in knowns-dev knowns
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.
CVE-2026-86543: Missing Authentication for Critical Function in knowns-dev knowns
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.
CVSS v4.0
Score 9.3critical
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-09-07T22:18:53.235Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a9f43bfacd9273b497857de
Added to database: 09/07/2026, 23:07:43 UTC
Last updated: 09/07/2026, 23:07:43 UTC
Views: 1
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