CVE-2026-86543 | BDVDB-2026-368922 Detail
knowns-devknowns
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.
Weaknesses#
- CWE-306 Missing Authentication for Critical Function
References#
- https://github.com/knowns-dev/knowns/security/advisories/GHSA-fc85-99vc-9c75
- https://github.com/knowns-dev/knowns/blob/v0.29.1/internal/server/auth.go#L80-L86
- https://github.com/knowns-dev/knowns/blob/v0.29.1/internal/cli/browser.go#L193-L200
- https://github.com/knowns-dev/knowns/blob/v0.29.1/internal/server/routes/tunnel.go#L26-L38
- https://github.com/knowns-dev/knowns/commit/878a02cb7cc14f0a592fdfda7a520af3cac500fb
- https://github.com/knowns-dev/knowns/releases/tag/v0.30.0
- https://www.vulncheck.com/advisories/knowns-before-0.30.0-unauthenticated-management-api-exposure
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.